BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'SANATOMY & PHYSIOLOGYCANCERCELLULARCHEMISTRYCIRCULATORYCONDITIONS Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical is a medical and scientific animation and illustration company that offers Pharmaceutical, Biotechnology, Healthcare, Energy, and

Financial Services.

BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'S Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical: The source and creator of the world’s largest award-winning 3D Medical Animation and Scientific Animation library. Redefining Patient and Student Education with over 1600 topics and featured

videos.

CATALYTIC DESTRUCTION OF OZONE The stratospheric ozone layer plays an important role in absorbing high-energy ultraviolet radiation that would be harmful to living systems on the earth’s surface. The concentration of ozone in the stratosphere is determined by both thermal and photochemical pathways for its decomposition. Nitric oxide, NO, is a trace constituent in the stratosphere. NO reacts with ozone to form nitrogen OVERVIEW OF HEART ANATOMY AND PHYSIOLOGY Overview of Heart Anatomy and Physiology. The heart is a muscular pump that works continuously to circulate blood through the cardiovascular system. Blood carries oxygen, nutrients, hormones, wastes, and other substances to and from cells of the body. The heart pumps our five liters of blood through the body nearly 1400 times per day, every day

ACTION POTENTIAL

Action potentials are depolarizations that start at the initial segment of an axon and are propagated toward the synaptic terminals. They are called “all-or-none” events because either an action potential is triggered or it is not; there is no in-between state. Prior to an action potential, the neuron is at rest, with a membrane potential of –70 mV. Now, if a stimulus depolarizes the EVAHEART LVAD DEVICE Evaheart LVAD Device. Cylinder-shaped inflow cannulas have been widely used for clinical ventricular assist devices. However, post LVAD stroke still exists and contributes as a main cause of death. This adverse event is attributable to surgical malposition or migration of the inflow cannula. Malposition occurs under circumstances where the PROSTATE NEEDLE BIOPSY During a prostate exam, a doctor may choose to take a needle biopsy sample to check for prostate cancer. This surgical procedure removes tissue from the prostate gland to later examine under a microscope. During the procedure, a biopsy device is inserted into the anus, and a spring-loaded needle passes through the wall of the rectum into the prostate gland. A small tissue sample is taken. This ACID-BASE BEHAVIOR OF OXIDES Most elements of the periodic table form at least one oxide. The oxides of the representative metals are ionic in character. They dissolve in water to form basic solutions. The oxides of the nonmetals are generally covalent in character. Many of them react with water to yield acidic solutions. Many nonmetals form more than one oxide. In general, the acidity of the acid formed from the oxide BREAST ANATOMY (INTERIOR) The female breasts are sex organs that produce and secrete milk to nourish an infant. They are primarily composed of fatty tissue (pectoral fat pad) and mammary glands. ABNORMAL HEMOSTASIS: CENTRAL VENOUS ACCESS DEVICE CLOT Alteplase is an effective, safe, and easy way to dissolve clots within central venous access devices and restore catheter function as assessed by the ability to withdrawal blood. Unlike Heparin, Alteplase is a fibrinolytic specifically-designed to target and bind to fibrin within the clot. It does so by binding to plasminogen, converting it

to

BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'SANATOMY & PHYSIOLOGYCANCERCELLULARCHEMISTRYCIRCULATORYCONDITIONS Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical is a medical and scientific animation and illustration company that offers Pharmaceutical, Biotechnology, Healthcare, Energy, and

Financial Services.

BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'S Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical: The source and creator of the world’s largest award-winning 3D Medical Animation and Scientific Animation library. Redefining Patient and Student Education with over 1600 topics and featured

videos.

CATALYTIC DESTRUCTION OF OZONE The stratospheric ozone layer plays an important role in absorbing high-energy ultraviolet radiation that would be harmful to living systems on the earth’s surface. The concentration of ozone in the stratosphere is determined by both thermal and photochemical pathways for its decomposition. Nitric oxide, NO, is a trace constituent in the stratosphere. NO reacts with ozone to form nitrogen OVERVIEW OF HEART ANATOMY AND PHYSIOLOGY Overview of Heart Anatomy and Physiology. The heart is a muscular pump that works continuously to circulate blood through the cardiovascular system. Blood carries oxygen, nutrients, hormones, wastes, and other substances to and from cells of the body. The heart pumps our five liters of blood through the body nearly 1400 times per day, every day

ACTION POTENTIAL

Action potentials are depolarizations that start at the initial segment of an axon and are propagated toward the synaptic terminals. They are called “all-or-none” events because either an action potential is triggered or it is not; there is no in-between state. Prior to an action potential, the neuron is at rest, with a membrane potential of –70 mV. Now, if a stimulus depolarizes the EVAHEART LVAD DEVICE Evaheart LVAD Device. Cylinder-shaped inflow cannulas have been widely used for clinical ventricular assist devices. However, post LVAD stroke still exists and contributes as a main cause of death. This adverse event is attributable to surgical malposition or migration of the inflow cannula. Malposition occurs under circumstances where the PROSTATE NEEDLE BIOPSY During a prostate exam, a doctor may choose to take a needle biopsy sample to check for prostate cancer. This surgical procedure removes tissue from the prostate gland to later examine under a microscope. During the procedure, a biopsy device is inserted into the anus, and a spring-loaded needle passes through the wall of the rectum into the prostate gland. A small tissue sample is taken. This ACID-BASE BEHAVIOR OF OXIDES Most elements of the periodic table form at least one oxide. The oxides of the representative metals are ionic in character. They dissolve in water to form basic solutions. The oxides of the nonmetals are generally covalent in character. Many of them react with water to yield acidic solutions. Many nonmetals form more than one oxide. In general, the acidity of the acid formed from the oxide BREAST ANATOMY (INTERIOR) The female breasts are sex organs that produce and secrete milk to nourish an infant. They are primarily composed of fatty tissue (pectoral fat pad) and mammary glands. ABNORMAL HEMOSTASIS: CENTRAL VENOUS ACCESS DEVICE CLOT Alteplase is an effective, safe, and easy way to dissolve clots within central venous access devices and restore catheter function as assessed by the ability to withdrawal blood. Unlike Heparin, Alteplase is a fibrinolytic specifically-designed to target and bind to fibrin within the clot. It does so by binding to plasminogen, converting it

to

ANATOMY & PHYSIOLOGY: 645 VIDEOS ON THIS TOPIC Active Transport: Sodium-Potassium Exchange Pump 1. In this example, ATP’s energy is harnessed to move sodium ions out of the cell and potassium ions into the cytoplasm. This is the pump that maintains the differences in sodium and CANCER: 64 VIDEOS ON THIS TOPIC Bladder Cancer. The urinary system is composed of two kidneys, two ureters, the bladder, and the urethra. The kidneys remove waste products from the blood and CIRCULATORY: 182 VIDEOS ON THIS TOPIC Abdominal Aneurysm. The aorta is the main artery of the circulatory system. Its function is to carry oxygen-rich blood from the heart to the rest of the body. It ASTHMA | BLAUSEN MEDICAL Asthma, or reactive airway disease, is a chronic disorder that results in restricted breathing due to inflammation of the bronchial tubes, the main air passages in the lungs. Asthma affects 3 to 5 percent of adults and 7 to 10 percent of children. Severe asthma attacks cause tens of thousands of deaths per year. Three changes occur inside the airways of the lungs in people with asthma: the POSITIVE FEEDBACK: BLOOD CLOTTING Positive feedback is a self-amplifying process where a stimulus or change leads to even greater change in the same direction. For example, if a blood vessel is damaged, chemicals begin a chain reaction that causes platelets to stick to the vessel wall. The platelets release more chemicals that accelerate the clotting process. This process ends once the vessel wall has been repaired by a clot. PTSD | BLAUSEN MEDICAL The brain is composed of millions of interconnecting nerve cells called neurons. In order for a person to think, move, or feel, these neurons must communicate with one another. They do so by sending and receiving chemical messengers called neurotransmitters. When a neurotransmitter is released from a neuron, it crosses a cleft, or synapse, and binds to a receptor on another neuron; thus BREAST ANATOMY (INTERIOR) The female breasts are sex organs that produce and secrete milk to nourish an infant. They are primarily composed of fatty tissue (pectoral fat pad) and mammary glands. CHEMICAL SYNAPSE: CHOLINERGIC SYNAPSE A neuron relays information to another neuron at a synapse. The neuron transmitting the information is called the pre-synaptic neuron, and the neuron receiving the information is the postsynaptic neuron. Let’s look at what happens at a cholinergic synapse, one of the most common types of synapses. When an action potential arrives at the synaptic knob of the pre-synaptic neuron, voltage

COCHLEAR IMPLANTS

When sound waves reach the ear, they are gathered by the funnel-shaped outer ear and channeled into the middle ear. As sound passes to the middle ear, the sound waves hit the tympanic membrane, or ear drum. The vibrations then travel through the middle ear and reach the fluid-filled inner ear. The inner ear contains an important structure called the cochlea. Inside the cochlea, sound HEMOSTASIS: PLATELET PHASE Hemostasis is the stoppage of bleeding by halting the loss of blood through damaged vessel wall. During the platelet phase of this process, platelets stick to the vessel wall and to each other. During this aggregation, they release chemicals - the beginning of a clot. BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'SANATOMY & PHYSIOLOGYCANCERCELLULARCHEMISTRYCIRCULATORYCONDITIONS Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical is a medical and scientific animation and illustration company that offers Pharmaceutical, Biotechnology, Healthcare, Energy, and

Financial Services.

BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'S Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical: The source and creator of the world’s largest award-winning 3D Medical Animation and Scientific Animation library. Redefining Patient and Student Education with over 1600 topics and featured

videos.

CATALYTIC DESTRUCTION OF OZONE The stratospheric ozone layer plays an important role in absorbing high-energy ultraviolet radiation that would be harmful to living systems on the earth’s surface. The concentration of ozone in the stratosphere is determined by both thermal and photochemical pathways for its decomposition. Nitric oxide, NO, is a trace constituent in the stratosphere. NO reacts with ozone to form nitrogen OVERVIEW OF HEART ANATOMY AND PHYSIOLOGY Overview of Heart Anatomy and Physiology. The heart is a muscular pump that works continuously to circulate blood through the cardiovascular system. Blood carries oxygen, nutrients, hormones, wastes, and other substances to and from cells of the body. The heart pumps our five liters of blood through the body nearly 1400 times per day, every day

ACTION POTENTIAL

Action potentials are depolarizations that start at the initial segment of an axon and are propagated toward the synaptic terminals. They are called “all-or-none” events because either an action potential is triggered or it is not; there is no in-between state. Prior to an action potential, the neuron is at rest, with a membrane potential of –70 mV. Now, if a stimulus depolarizes the EVAHEART LVAD DEVICE Evaheart LVAD Device. Cylinder-shaped inflow cannulas have been widely used for clinical ventricular assist devices. However, post LVAD stroke still exists and contributes as a main cause of death. This adverse event is attributable to surgical malposition or migration of the inflow cannula. Malposition occurs under circumstances where the PROSTATE NEEDLE BIOPSY During a prostate exam, a doctor may choose to take a needle biopsy sample to check for prostate cancer. This surgical procedure removes tissue from the prostate gland to later examine under a microscope. During the procedure, a biopsy device is inserted into the anus, and a spring-loaded needle passes through the wall of the rectum into the prostate gland. A small tissue sample is taken. This ACID-BASE BEHAVIOR OF OXIDES Most elements of the periodic table form at least one oxide. The oxides of the representative metals are ionic in character. They dissolve in water to form basic solutions. The oxides of the nonmetals are generally covalent in character. Many of them react with water to yield acidic solutions. Many nonmetals form more than one oxide. In general, the acidity of the acid formed from the oxide BREAST ANATOMY (INTERIOR) The female breasts are sex organs that produce and secrete milk to nourish an infant. They are primarily composed of fatty tissue (pectoral fat pad) and mammary glands. ABNORMAL HEMOSTASIS: CENTRAL VENOUS ACCESS DEVICE CLOT Alteplase is an effective, safe, and easy way to dissolve clots within central venous access devices and restore catheter function as assessed by the ability to withdrawal blood. Unlike Heparin, Alteplase is a fibrinolytic specifically-designed to target and bind to fibrin within the clot. It does so by binding to plasminogen, converting it

to

BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'SANATOMY & PHYSIOLOGYCANCERCELLULARCHEMISTRYCIRCULATORYCONDITIONS Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical is a medical and scientific animation and illustration company that offers Pharmaceutical, Biotechnology, Healthcare, Energy, and

Financial Services.

BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'S Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical: The source and creator of the world’s largest award-winning 3D Medical Animation and Scientific Animation library. Redefining Patient and Student Education with over 1600 topics and featured

videos.

CATALYTIC DESTRUCTION OF OZONE The stratospheric ozone layer plays an important role in absorbing high-energy ultraviolet radiation that would be harmful to living systems on the earth’s surface. The concentration of ozone in the stratosphere is determined by both thermal and photochemical pathways for its decomposition. Nitric oxide, NO, is a trace constituent in the stratosphere. NO reacts with ozone to form nitrogen OVERVIEW OF HEART ANATOMY AND PHYSIOLOGY Overview of Heart Anatomy and Physiology. The heart is a muscular pump that works continuously to circulate blood through the cardiovascular system. Blood carries oxygen, nutrients, hormones, wastes, and other substances to and from cells of the body. The heart pumps our five liters of blood through the body nearly 1400 times per day, every day

ACTION POTENTIAL

Action potentials are depolarizations that start at the initial segment of an axon and are propagated toward the synaptic terminals. They are called “all-or-none” events because either an action potential is triggered or it is not; there is no in-between state. Prior to an action potential, the neuron is at rest, with a membrane potential of –70 mV. Now, if a stimulus depolarizes the EVAHEART LVAD DEVICE Evaheart LVAD Device. Cylinder-shaped inflow cannulas have been widely used for clinical ventricular assist devices. However, post LVAD stroke still exists and contributes as a main cause of death. This adverse event is attributable to surgical malposition or migration of the inflow cannula. Malposition occurs under circumstances where the PROSTATE NEEDLE BIOPSY During a prostate exam, a doctor may choose to take a needle biopsy sample to check for prostate cancer. This surgical procedure removes tissue from the prostate gland to later examine under a microscope. During the procedure, a biopsy device is inserted into the anus, and a spring-loaded needle passes through the wall of the rectum into the prostate gland. A small tissue sample is taken. This ACID-BASE BEHAVIOR OF OXIDES Most elements of the periodic table form at least one oxide. The oxides of the representative metals are ionic in character. They dissolve in water to form basic solutions. The oxides of the nonmetals are generally covalent in character. Many of them react with water to yield acidic solutions. Many nonmetals form more than one oxide. In general, the acidity of the acid formed from the oxide BREAST ANATOMY (INTERIOR) The female breasts are sex organs that produce and secrete milk to nourish an infant. They are primarily composed of fatty tissue (pectoral fat pad) and mammary glands. ABNORMAL HEMOSTASIS: CENTRAL VENOUS ACCESS DEVICE CLOT Alteplase is an effective, safe, and easy way to dissolve clots within central venous access devices and restore catheter function as assessed by the ability to withdrawal blood. Unlike Heparin, Alteplase is a fibrinolytic specifically-designed to target and bind to fibrin within the clot. It does so by binding to plasminogen, converting it

to

ANATOMY & PHYSIOLOGY: 645 VIDEOS ON THIS TOPIC Active Transport: Sodium-Potassium Exchange Pump 1. In this example, ATP’s energy is harnessed to move sodium ions out of the cell and potassium ions into the cytoplasm. This is the pump that maintains the differences in sodium and CANCER: 64 VIDEOS ON THIS TOPIC Bladder Cancer. The urinary system is composed of two kidneys, two ureters, the bladder, and the urethra. The kidneys remove waste products from the blood and CIRCULATORY: 182 VIDEOS ON THIS TOPIC Abdominal Aneurysm. The aorta is the main artery of the circulatory system. Its function is to carry oxygen-rich blood from the heart to the rest of the body. It ASTHMA | BLAUSEN MEDICAL Asthma, or reactive airway disease, is a chronic disorder that results in restricted breathing due to inflammation of the bronchial tubes, the main air passages in the lungs. Asthma affects 3 to 5 percent of adults and 7 to 10 percent of children. Severe asthma attacks cause tens of thousands of deaths per year. Three changes occur inside the airways of the lungs in people with asthma: the POSITIVE FEEDBACK: BLOOD CLOTTING Positive feedback is a self-amplifying process where a stimulus or change leads to even greater change in the same direction. For example, if a blood vessel is damaged, chemicals begin a chain reaction that causes platelets to stick to the vessel wall. The platelets release more chemicals that accelerate the clotting process. This process ends once the vessel wall has been repaired by a clot. PTSD | BLAUSEN MEDICAL The brain is composed of millions of interconnecting nerve cells called neurons. In order for a person to think, move, or feel, these neurons must communicate with one another. They do so by sending and receiving chemical messengers called neurotransmitters. When a neurotransmitter is released from a neuron, it crosses a cleft, or synapse, and binds to a receptor on another neuron; thus BREAST ANATOMY (INTERIOR) The female breasts are sex organs that produce and secrete milk to nourish an infant. They are primarily composed of fatty tissue (pectoral fat pad) and mammary glands. CHEMICAL SYNAPSE: CHOLINERGIC SYNAPSE A neuron relays information to another neuron at a synapse. The neuron transmitting the information is called the pre-synaptic neuron, and the neuron receiving the information is the postsynaptic neuron. Let’s look at what happens at a cholinergic synapse, one of the most common types of synapses. When an action potential arrives at the synaptic knob of the pre-synaptic neuron, voltage

COCHLEAR IMPLANTS

When sound waves reach the ear, they are gathered by the funnel-shaped outer ear and channeled into the middle ear. As sound passes to the middle ear, the sound waves hit the tympanic membrane, or ear drum. The vibrations then travel through the middle ear and reach the fluid-filled inner ear. The inner ear contains an important structure called the cochlea. Inside the cochlea, sound HEMOSTASIS: PLATELET PHASE Hemostasis is the stoppage of bleeding by halting the loss of blood through damaged vessel wall. During the platelet phase of this process, platelets stick to the vessel wall and to each other. During this aggregation, they release chemicals - the beginning of a clot. BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'SANATOMY & PHYSIOLOGYCANCERCELLULARCHEMISTRYCIRCULATORYCONDITIONS Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical is a medical and scientific animation and illustration company that offers Pharmaceutical, Biotechnology, Healthcare, Energy, and

Financial Services.

BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'S Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical: The source and creator of the world’s largest award-winning 3D Medical Animation and Scientific Animation library. Redefining Patient and Student Education with over 1600 topics and featured

videos.

POSITIVE FEEDBACK: BLOOD CLOTTING Positive feedback is a self-amplifying process where a stimulus or change leads to even greater change in the same direction. For example, if a blood vessel is damaged, chemicals begin a chain reaction that causes platelets to stick to the vessel wall. The platelets release more chemicals that accelerate the clotting process. This process ends once the vessel wall has been repaired by a clot.

VOLTAIC CELLS I

When a strip of zinc metal is immersed in an aqueous Cu2+ sulfate solution, electrons are transferred from zinc to the Cu2+ ions. Copper metal deposits on the zinc strip and collects at the bottom of the flask. Zinc atoms are oxidized to Zn2+ ions, which enter the solution. This spontaneous oxidation reduction reaction is summarized in the chemical equation shown. The spontaneous copper-zinc ABSORPTIVE AND POSTABSORPTIVE STATES When you eat, your body uses this food to fuel the cells. The absorptive state of metabolism lasts for about four hours, during and after each meal. Throughout this state, digested food is converted into sugar or glucose. Insulin is a hormone that allows glucose to enter the cells and be used for energy. The liver will store glucose or turn any excess glucose into body fat for storage. The CATALYTIC DESTRUCTION OF OZONE The stratospheric ozone layer plays an important role in absorbing high-energy ultraviolet radiation that would be harmful to living systems on the earth’s surface. The concentration of ozone in the stratosphere is determined by both thermal and photochemical pathways for its decomposition. Nitric oxide, NO, is a trace constituent in the stratosphere. NO reacts with ozone to form nitrogen EVAHEART LVAD DEVICE Evaheart LVAD Device. Cylinder-shaped inflow cannulas have been widely used for clinical ventricular assist devices. However, post LVAD stroke still exists and contributes as a main cause of death. This adverse event is attributable to surgical malposition or migration of the inflow cannula. Malposition occurs under circumstances where the CHEMICAL SYNAPSE: CHOLINERGIC SYNAPSE A neuron relays information to another neuron at a synapse. The neuron transmitting the information is called the pre-synaptic neuron, and the neuron receiving the information is the postsynaptic neuron. Let’s look at what happens at a cholinergic synapse, one of the most common types of synapses. When an action potential arrives at the synaptic knob of the pre-synaptic neuron, voltage REMPLACEMENT DE LA VALVE AORTIQUE. Une intervention chirurgicale est souvent réalisée pour remplacer une valve aortique ou mitrale, mais votre médecin peut remplacer n'importe quelle valve. Il est conseillé de consulter votre médecin afin qu'il puisse identifier la forme de traitement qui vous convient le mieux. Duration: 03:23. Published: 19/01/2016. A VÁLL ANATÓMIÁJA A vállat csontok, szalagok, ínak és izmok alkotják. Ezek kapcsolják a kart a törzshöz. A vállövet alkotó három csont a kulcscsont (más néven clavicula), a lapockacsont (más néven scapula) és a felkarcsont (más néven humerus). A vállban két ízület található, melyek közösen teszik lehetővé a kar mozgatását. Az acromioclavicularis ízület a kulcscsont és a BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'SANATOMY & PHYSIOLOGYCANCERCELLULARCHEMISTRYCIRCULATORYCONDITIONS Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical is a medical and scientific animation and illustration company that offers Pharmaceutical, Biotechnology, Healthcare, Energy, and

Financial Services.

BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'S Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical: The source and creator of the world’s largest award-winning 3D Medical Animation and Scientific Animation library. Redefining Patient and Student Education with over 1600 topics and featured

videos.

POSITIVE FEEDBACK: BLOOD CLOTTING Positive feedback is a self-amplifying process where a stimulus or change leads to even greater change in the same direction. For example, if a blood vessel is damaged, chemicals begin a chain reaction that causes platelets to stick to the vessel wall. The platelets release more chemicals that accelerate the clotting process. This process ends once the vessel wall has been repaired by a clot.

VOLTAIC CELLS I

When a strip of zinc metal is immersed in an aqueous Cu2+ sulfate solution, electrons are transferred from zinc to the Cu2+ ions. Copper metal deposits on the zinc strip and collects at the bottom of the flask. Zinc atoms are oxidized to Zn2+ ions, which enter the solution. This spontaneous oxidation reduction reaction is summarized in the chemical equation shown. The spontaneous copper-zinc ABSORPTIVE AND POSTABSORPTIVE STATES When you eat, your body uses this food to fuel the cells. The absorptive state of metabolism lasts for about four hours, during and after each meal. Throughout this state, digested food is converted into sugar or glucose. Insulin is a hormone that allows glucose to enter the cells and be used for energy. The liver will store glucose or turn any excess glucose into body fat for storage. The CATALYTIC DESTRUCTION OF OZONE The stratospheric ozone layer plays an important role in absorbing high-energy ultraviolet radiation that would be harmful to living systems on the earth’s surface. The concentration of ozone in the stratosphere is determined by both thermal and photochemical pathways for its decomposition. Nitric oxide, NO, is a trace constituent in the stratosphere. NO reacts with ozone to form nitrogen EVAHEART LVAD DEVICE Evaheart LVAD Device. Cylinder-shaped inflow cannulas have been widely used for clinical ventricular assist devices. However, post LVAD stroke still exists and contributes as a main cause of death. This adverse event is attributable to surgical malposition or migration of the inflow cannula. Malposition occurs under circumstances where the CHEMICAL SYNAPSE: CHOLINERGIC SYNAPSE A neuron relays information to another neuron at a synapse. The neuron transmitting the information is called the pre-synaptic neuron, and the neuron receiving the information is the postsynaptic neuron. Let’s look at what happens at a cholinergic synapse, one of the most common types of synapses. When an action potential arrives at the synaptic knob of the pre-synaptic neuron, voltage REMPLACEMENT DE LA VALVE AORTIQUE. Une intervention chirurgicale est souvent réalisée pour remplacer une valve aortique ou mitrale, mais votre médecin peut remplacer n'importe quelle valve. Il est conseillé de consulter votre médecin afin qu'il puisse identifier la forme de traitement qui vous convient le mieux. Duration: 03:23. Published: 19/01/2016. A VÁLL ANATÓMIÁJA A vállat csontok, szalagok, ínak és izmok alkotják. Ezek kapcsolják a kart a törzshöz. A vállövet alkotó három csont a kulcscsont (más néven clavicula), a lapockacsont (más néven scapula) és a felkarcsont (más néven humerus). A vállban két ízület található, melyek közösen teszik lehetővé a kar mozgatását. Az acromioclavicularis ízület a kulcscsont és a CATALYTIC DESTRUCTION OF OZONE The stratospheric ozone layer plays an important role in absorbing high-energy ultraviolet radiation that would be harmful to living systems on the earth’s surface. The concentration of ozone in the stratosphere is determined by both thermal and photochemical pathways for its decomposition. Nitric oxide, NO, is a trace constituent in the stratosphere. NO reacts with ozone to form nitrogen ANATOMY & PHYSIOLOGY: 645 VIDEOS ON THIS TOPIC Active Transport: Sodium-Potassium Exchange Pump 1. In this example, ATP’s energy is harnessed to move sodium ions out of the cell and potassium ions into the cytoplasm. This is the pump that maintains the differences in sodium and OVERVIEW OF HEART ANATOMY AND PHYSIOLOGY Overview of Heart Anatomy and Physiology. The heart is a muscular pump that works continuously to circulate blood through the cardiovascular system. Blood carries oxygen, nutrients, hormones, wastes, and other substances to and from cells of the body. The heart pumps our five liters of blood through the body nearly 1400 times per day, every day FONCTIONNEMENT DU CŒUR Fonctionnement du cœur. L’organisme a besoin d’oxygène pour vivre. Un réseau d’artères et de veines transporte le sang riche en oxygène dans l’organisme et renvoie le sang pauvre en oxygène vers les poumons. Le cœur est au centre de ce processus continu ; c’est un muscle battant de la taille du poing. Le cœur pompe

environ 5

VALVULOPLASTIE MITRALE Le cœur est un muscle qui bat et pompe le sang pour irriguer l'ensemble de l'organisme. À l'intérieur du cœur quatre valvules dirigent le flux sanguin. Deux valvules contrôlent le flux sanguin depuis les cavités supérieures (ou oreillettes) jusqu'aux cavités inférieures (ou ventricules). Les deux autres valvules contrôlent le flux sanguin provenant des ventricules, l'une vers les FONCTIONNEMENT DES VALVES CARDIAQUES Fonctionnement des valves cardiaques. Le cœur est un muscle battant qui pompe le sang dans l’ensemble du corps. À l’intérieur du cœur, quatre valvules s’ouvrent et se ferment selon une séquence précise pour assurer la circulation du sang dans la bonne direction. Deux valvules cardiaques contrôlent le flux sanguin entre les

chambres

ANÉVRISME DE L’AORTE ABDOMINALE L’aorte est l’artère principale du système circulatoire. Sa fonction consiste à transporter le sang riche en oxygène depuis le cœur vers le reste de l’organisme. Elle est divisée en deux parties principales ; l’aorte thoracique qui parcourt le centre de la poitrine, et l’aorte abdominale qui est la partie inférieure située dans l’abdomen. Un anévrisme aortique abdominal

TENSION ARTÉRIELLE

Le cœur est un muscle qui pompe le sang riche en oxygène pour le distribuer dans tout le corps par l'intermédiaire des veines et des artères. Ce que nous appelons communément « tension artérielle » correspond en réalité à la mesure prise lorsque le ventricule gauche du cœur se contracte et que le sang est projeté vers les artères. Tout au long de son cheminement à travers le NEOPLASIA DA PRÓSTATA A próstata faz parte do sistema reprodutor masculino. È uma glândula pequena, redonda, situada em frente ao recto na base da bexiga. A sua principal função é libertar fluido para a uretra durante a ejaculação. Durante a ejaculação, o esperma sai do testículo através duns canais chamados canais deferentes. Os canais deferentes passam por detrás da bexiga e entram na glândula ARTICULAÇÃO FACETÁRIA Articulação Facetária. As articulações facetadas são articulações móveis da coluna que ligam uma vértebra a outra. Sem estas articulações, não poderíamos ter flexibilidade na espinha e não nos poderíamos movimentar. As articulações em faceta podem ser lesionadas por traumatismo ou artrite, o que pode causar dor e

rigidez.

BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'SANATOMY & PHYSIOLOGYCANCERCELLULARCHEMISTRYCIRCULATORYCONDITIONS Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical is a medical and scientific animation and illustration company that offers Pharmaceutical, Biotechnology, Healthcare, Energy, and

Financial Services.

BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'S Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical: The source and creator of the world’s largest award-winning 3D Medical Animation and Scientific Animation library. Redefining Patient and Student Education with over 1600 topics and featured

videos.

OVERVIEW OF HEART ANATOMY AND PHYSIOLOGY Overview of Heart Anatomy and Physiology. The heart is a muscular pump that works continuously to circulate blood through the cardiovascular system. Blood carries oxygen, nutrients, hormones, wastes, and other substances to and from cells of the body. The heart pumps our five liters of blood through the body nearly 1400 times per day, every day CATALYTIC DESTRUCTION OF OZONE The stratospheric ozone layer plays an important role in absorbing high-energy ultraviolet radiation that would be harmful to living systems on the earth’s surface. The concentration of ozone in the stratosphere is determined by both thermal and photochemical pathways for its decomposition. Nitric oxide, NO, is a trace constituent in the stratosphere. NO reacts with ozone to form nitrogen

ACTION POTENTIAL

Action potentials are depolarizations that start at the initial segment of an axon and are propagated toward the synaptic terminals. They are called “all-or-none” events because either an action potential is triggered or it is not; there is no in-between state. Prior to an action potential, the neuron is at rest, with a membrane potential of –70 mV. Now, if a stimulus depolarizes the

VOLTAIC CELLS I

When a strip of zinc metal is immersed in an aqueous Cu2+ sulfate solution, electrons are transferred from zinc to the Cu2+ ions. Copper metal deposits on the zinc strip and collects at the bottom of the flask. Zinc atoms are oxidized to Zn2+ ions, which enter the solution. This spontaneous oxidation reduction reaction is summarized in the chemical equation shown. The spontaneous copper-zinc ACID-BASE BEHAVIOR OF OXIDES Most elements of the periodic table form at least one oxide. The oxides of the representative metals are ionic in character. They dissolve in water to form basic solutions. The oxides of the nonmetals are generally covalent in character. Many of them react with water to yield acidic solutions. Many nonmetals form more than one oxide. In general, the acidity of the acid formed from the oxide PROSTATE NEEDLE BIOPSY During a prostate exam, a doctor may choose to take a needle biopsy sample to check for prostate cancer. This surgical procedure removes tissue from the prostate gland to later examine under a microscope. During the procedure, a biopsy device is inserted into the anus, and a spring-loaded needle passes through the wall of the rectum into the prostate gland. A small tissue sample is taken. This CHEMICAL SYNAPSE: CHOLINERGIC SYNAPSE A neuron relays information to another neuron at a synapse. The neuron transmitting the information is called the pre-synaptic neuron, and the neuron receiving the information is the postsynaptic neuron. Let’s look at what happens at a cholinergic synapse, one of the most common types of synapses. When an action potential arrives at the synaptic knob of the pre-synaptic neuron, voltage WHITE BLOOD CELL: NEUTROPHIL A neutrophil is a type of white blood cell (granulocyte) with a segmented nucleus. They play an important role in engulfing bacteria as part of the immune response. BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'SANATOMY & PHYSIOLOGYCANCERCELLULARCHEMISTRYCIRCULATORYCONDITIONS Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical is a medical and scientific animation and illustration company that offers Pharmaceutical, Biotechnology, Healthcare, Energy, and

Financial Services.

BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'S Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical: The source and creator of the world’s largest award-winning 3D Medical Animation and Scientific Animation library. Redefining Patient and Student Education with over 1600 topics and featured

videos.

OVERVIEW OF HEART ANATOMY AND PHYSIOLOGY Overview of Heart Anatomy and Physiology. The heart is a muscular pump that works continuously to circulate blood through the cardiovascular system. Blood carries oxygen, nutrients, hormones, wastes, and other substances to and from cells of the body. The heart pumps our five liters of blood through the body nearly 1400 times per day, every day CATALYTIC DESTRUCTION OF OZONE The stratospheric ozone layer plays an important role in absorbing high-energy ultraviolet radiation that would be harmful to living systems on the earth’s surface. The concentration of ozone in the stratosphere is determined by both thermal and photochemical pathways for its decomposition. Nitric oxide, NO, is a trace constituent in the stratosphere. NO reacts with ozone to form nitrogen

ACTION POTENTIAL

Action potentials are depolarizations that start at the initial segment of an axon and are propagated toward the synaptic terminals. They are called “all-or-none” events because either an action potential is triggered or it is not; there is no in-between state. Prior to an action potential, the neuron is at rest, with a membrane potential of –70 mV. Now, if a stimulus depolarizes the

VOLTAIC CELLS I

When a strip of zinc metal is immersed in an aqueous Cu2+ sulfate solution, electrons are transferred from zinc to the Cu2+ ions. Copper metal deposits on the zinc strip and collects at the bottom of the flask. Zinc atoms are oxidized to Zn2+ ions, which enter the solution. This spontaneous oxidation reduction reaction is summarized in the chemical equation shown. The spontaneous copper-zinc ACID-BASE BEHAVIOR OF OXIDES Most elements of the periodic table form at least one oxide. The oxides of the representative metals are ionic in character. They dissolve in water to form basic solutions. The oxides of the nonmetals are generally covalent in character. Many of them react with water to yield acidic solutions. Many nonmetals form more than one oxide. In general, the acidity of the acid formed from the oxide PROSTATE NEEDLE BIOPSY During a prostate exam, a doctor may choose to take a needle biopsy sample to check for prostate cancer. This surgical procedure removes tissue from the prostate gland to later examine under a microscope. During the procedure, a biopsy device is inserted into the anus, and a spring-loaded needle passes through the wall of the rectum into the prostate gland. A small tissue sample is taken. This CHEMICAL SYNAPSE: CHOLINERGIC SYNAPSE A neuron relays information to another neuron at a synapse. The neuron transmitting the information is called the pre-synaptic neuron, and the neuron receiving the information is the postsynaptic neuron. Let’s look at what happens at a cholinergic synapse, one of the most common types of synapses. When an action potential arrives at the synaptic knob of the pre-synaptic neuron, voltage WHITE BLOOD CELL: NEUTROPHIL A neutrophil is a type of white blood cell (granulocyte) with a segmented nucleus. They play an important role in engulfing bacteria as part of the immune response. ANATOMY & PHYSIOLOGY: 645 VIDEOS ON THIS TOPIC Active Transport: Sodium-Potassium Exchange Pump 1. In this example, ATP’s energy is harnessed to move sodium ions out of the cell and potassium ions into the cytoplasm. This is the pump that maintains the differences in sodium and REPRODUCTIVE: 116 VIDEOS ON THIS TOPIC Birth Control Patch. The female reproductive system includes the uterus, fallopian tubes, and ovaries. The ovaries are almond-shaped glands located on either side DIGESTIVE: 87 VIDEOS ON THIS TOPIC Biliopancreatic diversion (BPD) with switch is a combination restrictive and malabsorptive procedure. The goal of this surgery is to induce weight loss by altering the digestive tr 01:28 01:28. POSITIVE FEEDBACK: BLOOD CLOTTING Positive feedback is a self-amplifying process where a stimulus or change leads to even greater change in the same direction. For example, if a blood vessel is damaged, chemicals begin a chain reaction that causes platelets to stick to the vessel wall. The platelets release more chemicals that accelerate the clotting process. This process ends once the vessel wall has been repaired by a clot. CIRCULATORY: 182 VIDEOS ON THIS TOPIC Abdominal Aneurysm. The aorta is the main artery of the circulatory system. Its function is to carry oxygen-rich blood from the heart to the rest of the body. It

BREAST SELF-EXAM

Breast Self-Exam. Far too often, breast cancer is detected after it has spread and affected other parts of the body. Regular breast self-examination is an important step to early detection. The female breast is primarily composed of fatty tissue and mammary glands. Mammary glands drain into the lactiferous sinus, which connects them

to the nipple.

RUPTURE DE LA PLAQUE D'ATHÉROME Le cœur pompe le sang dans le corps par un réseau complexe d’artères. À l’exception des artères coronaires, qui alimentent le cœur, la plupart des artères transportent du sang riche en oxygène depuis le cœur. Le sang transporte des globules rouges, des globules blancs, des nutriments et d’autres substances vitales. Le cholestérol et d’autres substances grasses circulent TESTICLES SECRETE TESTOSTERONE An androgen, such as testosterone, is any steroid hormone that increases the development of male characteristics. It is secreted by

the testes.

A VÁLL ANATÓMIÁJA A vállat csontok, szalagok, ínak és izmok alkotják. Ezek kapcsolják a kart a törzshöz. A vállövet alkotó három csont a kulcscsont (más néven clavicula), a lapockacsont (más néven scapula) és a felkarcsont (más néven humerus). A vállban két ízület található, melyek közösen teszik lehetővé a kar mozgatását. Az acromioclavicularis ízület a kulcscsont és a RAGGI X | BLAUSEN MEDICALTRANSLATE THIS PAGE L'esame con i raggi X utilizza raggi a elevata energia in grado di attraversare certi tessuti del corpo per ricavarne delle immagini, da utilizzare per la diagnosi e per la terapia. L'apparecchiatura utilizzata è formata da un tubo a raggi X, che contiene un paio di elettrodi, o conduttori, chiamati catodo e anodo. Il catodo è un filamento che, quando è attraversato da corrente elettrica BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'SANATOMY & PHYSIOLOGYCANCERCELLULARCHEMISTRYCIRCULATORYCONDITIONS Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical is a medical and scientific animation and illustration company that offers Pharmaceutical, Biotechnology, Healthcare, Energy, and

Financial Services.

BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'S Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical: The source and creator of the world’s largest award-winning 3D Medical Animation and Scientific Animation library. Redefining Patient and Student Education with over 1600 topics and featured

videos.

OVERVIEW OF HEART ANATOMY AND PHYSIOLOGY Overview of Heart Anatomy and Physiology. The heart is a muscular pump that works continuously to circulate blood through the cardiovascular system. Blood carries oxygen, nutrients, hormones, wastes, and other substances to and from cells of the body. The heart pumps our five liters of blood through the body nearly 1400 times per day, every day CHEMICAL SYNAPSE: CHOLINERGIC SYNAPSE A neuron relays information to another neuron at a synapse. The neuron transmitting the information is called the pre-synaptic neuron, and the neuron receiving the information is the postsynaptic neuron. Let’s look at what happens at a cholinergic synapse, one of the most common types of synapses. When an action potential arrives at the synaptic knob of the pre-synaptic neuron, voltage PROSTATE NEEDLE BIOPSY During a prostate exam, a doctor may choose to take a needle biopsy sample to check for prostate cancer. This surgical procedure removes tissue from the prostate gland to later examine under a microscope. During the procedure, a biopsy device is inserted into the anus, and a spring-loaded needle passes through the wall of the rectum into the prostate gland. A small tissue sample is taken. This ABSORPTIVE AND POSTABSORPTIVE STATES When you eat, your body uses this food to fuel the cells. The absorptive state of metabolism lasts for about four hours, during and after each meal. Throughout this state, digested food is converted into sugar or glucose. Insulin is a hormone that allows glucose to enter the cells and be used for energy. The liver will store glucose or turn any excess glucose into body fat for storage. The

VOLTAIC CELLS I

When a strip of zinc metal is immersed in an aqueous Cu2+ sulfate solution, electrons are transferred from zinc to the Cu2+ ions. Copper metal deposits on the zinc strip and collects at the bottom of the flask. Zinc atoms are oxidized to Zn2+ ions, which enter the solution. This spontaneous oxidation reduction reaction is summarized in the chemical equation shown. The spontaneous copper-zinc ACID-BASE BEHAVIOR OF OXIDES Most elements of the periodic table form at least one oxide. The oxides of the representative metals are ionic in character. They dissolve in water to form basic solutions. The oxides of the nonmetals are generally covalent in character. Many of them react with water to yield acidic solutions. Many nonmetals form more than one oxide. In general, the acidity of the acid formed from the oxide WHITE BLOOD CELL: NEUTROPHIL A neutrophil is a type of white blood cell (granulocyte) with a segmented nucleus. They play an important role in engulfing bacteria as part of the immune response. ANÉVRISME DE L’AORTE ABDOMINALE L’aorte est l’artère principale du système circulatoire. Sa fonction consiste à transporter le sang riche en oxygène depuis le cœur vers le reste de l’organisme. Elle est divisée en deux parties principales ; l’aorte thoracique qui parcourt le centre de la poitrine, et l’aorte abdominale qui est la partie inférieure située dans l’abdomen. Un anévrisme aortique abdominal BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'SANATOMY & PHYSIOLOGYCANCERCELLULARCHEMISTRYCIRCULATORYCONDITIONS Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical is a medical and scientific animation and illustration company that offers Pharmaceutical, Biotechnology, Healthcare, Energy, and

Financial Services.

BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'S Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical: The source and creator of the world’s largest award-winning 3D Medical Animation and Scientific Animation library. Redefining Patient and Student Education with over 1600 topics and featured

videos.

OVERVIEW OF HEART ANATOMY AND PHYSIOLOGY Overview of Heart Anatomy and Physiology. The heart is a muscular pump that works continuously to circulate blood through the cardiovascular system. Blood carries oxygen, nutrients, hormones, wastes, and other substances to and from cells of the body. The heart pumps our five liters of blood through the body nearly 1400 times per day, every day CHEMICAL SYNAPSE: CHOLINERGIC SYNAPSE A neuron relays information to another neuron at a synapse. The neuron transmitting the information is called the pre-synaptic neuron, and the neuron receiving the information is the postsynaptic neuron. Let’s look at what happens at a cholinergic synapse, one of the most common types of synapses. When an action potential arrives at the synaptic knob of the pre-synaptic neuron, voltage PROSTATE NEEDLE BIOPSY During a prostate exam, a doctor may choose to take a needle biopsy sample to check for prostate cancer. This surgical procedure removes tissue from the prostate gland to later examine under a microscope. During the procedure, a biopsy device is inserted into the anus, and a spring-loaded needle passes through the wall of the rectum into the prostate gland. A small tissue sample is taken. This ABSORPTIVE AND POSTABSORPTIVE STATES When you eat, your body uses this food to fuel the cells. The absorptive state of metabolism lasts for about four hours, during and after each meal. Throughout this state, digested food is converted into sugar or glucose. Insulin is a hormone that allows glucose to enter the cells and be used for energy. The liver will store glucose or turn any excess glucose into body fat for storage. The

VOLTAIC CELLS I

When a strip of zinc metal is immersed in an aqueous Cu2+ sulfate solution, electrons are transferred from zinc to the Cu2+ ions. Copper metal deposits on the zinc strip and collects at the bottom of the flask. Zinc atoms are oxidized to Zn2+ ions, which enter the solution. This spontaneous oxidation reduction reaction is summarized in the chemical equation shown. The spontaneous copper-zinc ACID-BASE BEHAVIOR OF OXIDES Most elements of the periodic table form at least one oxide. The oxides of the representative metals are ionic in character. They dissolve in water to form basic solutions. The oxides of the nonmetals are generally covalent in character. Many of them react with water to yield acidic solutions. Many nonmetals form more than one oxide. In general, the acidity of the acid formed from the oxide WHITE BLOOD CELL: NEUTROPHIL A neutrophil is a type of white blood cell (granulocyte) with a segmented nucleus. They play an important role in engulfing bacteria as part of the immune response. ANÉVRISME DE L’AORTE ABDOMINALE L’aorte est l’artère principale du système circulatoire. Sa fonction consiste à transporter le sang riche en oxygène depuis le cœur vers le reste de l’organisme. Elle est divisée en deux parties principales ; l’aorte thoracique qui parcourt le centre de la poitrine, et l’aorte abdominale qui est la partie inférieure située dans l’abdomen. Un anévrisme aortique abdominal ANATOMY & PHYSIOLOGY: 645 VIDEOS ON THIS TOPIC Active Transport: Sodium-Potassium Exchange Pump 1. In this example, ATP’s energy is harnessed to move sodium ions out of the cell and potassium ions into the cytoplasm. This is the pump that maintains the differences in sodium and REPRODUCTIVE: 116 VIDEOS ON THIS TOPIC Birth Control Patch. The female reproductive system includes the uterus, fallopian tubes, and ovaries. The ovaries are almond-shaped glands located on either side DIGESTIVE: 87 VIDEOS ON THIS TOPIC Biliopancreatic diversion (BPD) with switch is a combination restrictive and malabsorptive procedure. The goal of this surgery is to induce weight loss by altering the digestive tr 01:28 01:28.

VOLTAIC CELLS I

When a strip of zinc metal is immersed in an aqueous Cu2+ sulfate solution, electrons are transferred from zinc to the Cu2+ ions. Copper metal deposits on the zinc strip and collects at the bottom of the flask. Zinc atoms are oxidized to Zn2+ ions, which enter the solution. This spontaneous oxidation reduction reaction is summarized in the chemical equation shown. The spontaneous copper-zinc POSITIVE FEEDBACK: BLOOD CLOTTING Positive feedback is a self-amplifying process where a stimulus or change leads to even greater change in the same direction. For example, if a blood vessel is damaged, chemicals begin a chain reaction that causes platelets to stick to the vessel wall. The platelets release more chemicals that accelerate the clotting process. This process ends once the vessel wall has been repaired by a clot.

ACTION POTENTIAL

Action potentials are depolarizations that start at the initial segment of an axon and are propagated toward the synaptic terminals. They are called “all-or-none” events because either an action potential is triggered or it is not; there is no in-between state. Prior to an action potential, the neuron is at rest, with a membrane potential of –70 mV. Now, if a stimulus depolarizes the EMPHYSEMA | BLAUSEN MEDICAL During normal respiration, air travels through the nose, down the trachea, and into smaller and smaller airways called bronchi. The bronchi divide into bronchioles and finally into tiny grape-like clusters of thin, fragile sacs called alveoli. In alveoli, oxygen is exchanged for carbon dioxide in the blood. Inhaled toxic vapors, such as those found in cigarette smoke, can lead to the CATALYTIC DESTRUCTION OF OZONE The stratospheric ozone layer plays an important role in absorbing high-energy ultraviolet radiation that would be harmful to living systems on the earth’s surface. The concentration of ozone in the stratosphere is determined by both thermal and photochemical pathways for its decomposition. Nitric oxide, NO, is a trace constituent in the stratosphere. NO reacts with ozone to form nitrogen BRONCHITIS | BLAUSEN MEDICAL Bronchitis is an inflammation of the bronchial tubes, or bronchi. When the cells of the bronchial-lining tissue are irritated beyond a certain point, the tiny hair cells (cilia) which normally trap and eliminate pollutants, stop functioning. In response, a heavy secretion of mucus develops, which causes the characteristic cough of

bronchitis.

FONCTIONNEMENT DU CŒUR Fonctionnement du cœur. L’organisme a besoin d’oxygène pour vivre. Un réseau d’artères et de veines transporte le sang riche en oxygène dans l’organisme et renvoie le sang pauvre en oxygène vers les poumons. Le cœur est au centre de ce processus continu ; c’est un muscle battant de la taille du poing. Le cœur pompe

environ 5

BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'SANATOMY & PHYSIOLOGYCANCERCELLULARCHEMISTRYCIRCULATORYCONDITIONS Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical is a medical and scientific animation and illustration company that offers Pharmaceutical, Biotechnology, Healthcare, Energy, and

Financial Services.

BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'S Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical: The source and creator of the world’s largest award-winning 3D Medical Animation and Scientific Animation library. Redefining Patient and Student Education with over 1600 topics and featured

videos.

OVERVIEW OF HEART ANATOMY AND PHYSIOLOGY Overview of Heart Anatomy and Physiology. The heart is a muscular pump that works continuously to circulate blood through the cardiovascular system. Blood carries oxygen, nutrients, hormones, wastes, and other substances to and from cells of the body. The heart pumps our five liters of blood through the body nearly 1400 times per day, every day CHEMICAL SYNAPSE: CHOLINERGIC SYNAPSE A neuron relays information to another neuron at a synapse. The neuron transmitting the information is called the pre-synaptic neuron, and the neuron receiving the information is the postsynaptic neuron. Let’s look at what happens at a cholinergic synapse, one of the most common types of synapses. When an action potential arrives at the synaptic knob of the pre-synaptic neuron, voltage PROSTATE NEEDLE BIOPSY During a prostate exam, a doctor may choose to take a needle biopsy sample to check for prostate cancer. This surgical procedure removes tissue from the prostate gland to later examine under a microscope. During the procedure, a biopsy device is inserted into the anus, and a spring-loaded needle passes through the wall of the rectum into the prostate gland. A small tissue sample is taken. This ABSORPTIVE AND POSTABSORPTIVE STATES When you eat, your body uses this food to fuel the cells. The absorptive state of metabolism lasts for about four hours, during and after each meal. Throughout this state, digested food is converted into sugar or glucose. Insulin is a hormone that allows glucose to enter the cells and be used for energy. The liver will store glucose or turn any excess glucose into body fat for storage. The

VOLTAIC CELLS I

When a strip of zinc metal is immersed in an aqueous Cu2+ sulfate solution, electrons are transferred from zinc to the Cu2+ ions. Copper metal deposits on the zinc strip and collects at the bottom of the flask. Zinc atoms are oxidized to Zn2+ ions, which enter the solution. This spontaneous oxidation reduction reaction is summarized in the chemical equation shown. The spontaneous copper-zinc ACID-BASE BEHAVIOR OF OXIDES Most elements of the periodic table form at least one oxide. The oxides of the representative metals are ionic in character. They dissolve in water to form basic solutions. The oxides of the nonmetals are generally covalent in character. Many of them react with water to yield acidic solutions. Many nonmetals form more than one oxide. In general, the acidity of the acid formed from the oxide WHITE BLOOD CELL: NEUTROPHIL A neutrophil is a type of white blood cell (granulocyte) with a segmented nucleus. They play an important role in engulfing bacteria as part of the immune response. ANÉVRISME DE L’AORTE ABDOMINALE L’aorte est l’artère principale du système circulatoire. Sa fonction consiste à transporter le sang riche en oxygène depuis le cœur vers le reste de l’organisme. Elle est divisée en deux parties principales ; l’aorte thoracique qui parcourt le centre de la poitrine, et l’aorte abdominale qui est la partie inférieure située dans l’abdomen. Un anévrisme aortique abdominal BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'SANATOMY & PHYSIOLOGYCANCERCELLULARCHEMISTRYCIRCULATORYCONDITIONS Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical is a medical and scientific animation and illustration company that offers Pharmaceutical, Biotechnology, Healthcare, Energy, and

Financial Services.

BLAUSEN MEDICAL: THE SOURCE AND CREATOR OF THE WORLD'S Blausen Medical: The source and creator of the world's largest award-winning 3D medical/scientific animation library. Blausen Medical: The source and creator of the world’s largest award-winning 3D Medical Animation and Scientific Animation library. Redefining Patient and Student Education with over 1600 topics and featured

videos.

OVERVIEW OF HEART ANATOMY AND PHYSIOLOGY Overview of Heart Anatomy and Physiology. The heart is a muscular pump that works continuously to circulate blood through the cardiovascular system. Blood carries oxygen, nutrients, hormones, wastes, and other substances to and from cells of the body. The heart pumps our five liters of blood through the body nearly 1400 times per day, every day CHEMICAL SYNAPSE: CHOLINERGIC SYNAPSE A neuron relays information to another neuron at a synapse. The neuron transmitting the information is called the pre-synaptic neuron, and the neuron receiving the information is the postsynaptic neuron. Let’s look at what happens at a cholinergic synapse, one of the most common types of synapses. When an action potential arrives at the synaptic knob of the pre-synaptic neuron, voltage PROSTATE NEEDLE BIOPSY During a prostate exam, a doctor may choose to take a needle biopsy sample to check for prostate cancer. This surgical procedure removes tissue from the prostate gland to later examine under a microscope. During the procedure, a biopsy device is inserted into the anus, and a spring-loaded needle passes through the wall of the rectum into the prostate gland. A small tissue sample is taken. This ABSORPTIVE AND POSTABSORPTIVE STATES When you eat, your body uses this food to fuel the cells. The absorptive state of metabolism lasts for about four hours, during and after each meal. Throughout this state, digested food is converted into sugar or glucose. Insulin is a hormone that allows glucose to enter the cells and be used for energy. The liver will store glucose or turn any excess glucose into body fat for storage. The

VOLTAIC CELLS I

When a strip of zinc metal is immersed in an aqueous Cu2+ sulfate solution, electrons are transferred from zinc to the Cu2+ ions. Copper metal deposits on the zinc strip and collects at the bottom of the flask. Zinc atoms are oxidized to Zn2+ ions, which enter the solution. This spontaneous oxidation reduction reaction is summarized in the chemical equation shown. The spontaneous copper-zinc ACID-BASE BEHAVIOR OF OXIDES Most elements of the periodic table form at least one oxide. The oxides of the representative metals are ionic in character. They dissolve in water to form basic solutions. The oxides of the nonmetals are generally covalent in character. Many of them react with water to yield acidic solutions. Many nonmetals form more than one oxide. In general, the acidity of the acid formed from the oxide WHITE BLOOD CELL: NEUTROPHIL A neutrophil is a type of white blood cell (granulocyte) with a segmented nucleus. They play an important role in engulfing bacteria as part of the immune response. ANÉVRISME DE L’AORTE ABDOMINALE L’aorte est l’artère principale du système circulatoire. Sa fonction consiste à transporter le sang riche en oxygène depuis le cœur vers le reste de l’organisme. Elle est divisée en deux parties principales ; l’aorte thoracique qui parcourt le centre de la poitrine, et l’aorte abdominale qui est la partie inférieure située dans l’abdomen. Un anévrisme aortique abdominal ANATOMY & PHYSIOLOGY: 645 VIDEOS ON THIS TOPIC Active Transport: Sodium-Potassium Exchange Pump 1. In this example, ATP’s energy is harnessed to move sodium ions out of the cell and potassium ions into the cytoplasm. This is the pump that maintains the differences in sodium and REPRODUCTIVE: 116 VIDEOS ON THIS TOPIC Birth Control Patch. The female reproductive system includes the uterus, fallopian tubes, and ovaries. The ovaries are almond-shaped glands located on either side DIGESTIVE: 87 VIDEOS ON THIS TOPIC Biliopancreatic diversion (BPD) with switch is a combination restrictive and malabsorptive procedure. The goal of this surgery is to induce weight loss by altering the digestive tr 01:28 01:28.

VOLTAIC CELLS I

When a strip of zinc metal is immersed in an aqueous Cu2+ sulfate solution, electrons are transferred from zinc to the Cu2+ ions. Copper metal deposits on the zinc strip and collects at the bottom of the flask. Zinc atoms are oxidized to Zn2+ ions, which enter the solution. This spontaneous oxidation reduction reaction is summarized in the chemical equation shown. The spontaneous copper-zinc POSITIVE FEEDBACK: BLOOD CLOTTING Positive feedback is a self-amplifying process where a stimulus or change leads to even greater change in the same direction. For example, if a blood vessel is damaged, chemicals begin a chain reaction that causes platelets to stick to the vessel wall. The platelets release more chemicals that accelerate the clotting process. This process ends once the vessel wall has been repaired by a clot.

ACTION POTENTIAL

Action potentials are depolarizations that start at the initial segment of an axon and are propagated toward the synaptic terminals. They are called “all-or-none” events because either an action potential is triggered or it is not; there is no in-between state. Prior to an action potential, the neuron is at rest, with a membrane potential of –70 mV. Now, if a stimulus depolarizes the EMPHYSEMA | BLAUSEN MEDICAL During normal respiration, air travels through the nose, down the trachea, and into smaller and smaller airways called bronchi. The bronchi divide into bronchioles and finally into tiny grape-like clusters of thin, fragile sacs called alveoli. In alveoli, oxygen is exchanged for carbon dioxide in the blood. Inhaled toxic vapors, such as those found in cigarette smoke, can lead to the CATALYTIC DESTRUCTION OF OZONE The stratospheric ozone layer plays an important role in absorbing high-energy ultraviolet radiation that would be harmful to living systems on the earth’s surface. The concentration of ozone in the stratosphere is determined by both thermal and photochemical pathways for its decomposition. Nitric oxide, NO, is a trace constituent in the stratosphere. NO reacts with ozone to form nitrogen BRONCHITIS | BLAUSEN MEDICAL Bronchitis is an inflammation of the bronchial tubes, or bronchi. When the cells of the bronchial-lining tissue are irritated beyond a certain point, the tiny hair cells (cilia) which normally trap and eliminate pollutants, stop functioning. In response, a heavy secretion of mucus develops, which causes the characteristic cough of

bronchitis.

FONCTIONNEMENT DU CŒUR Fonctionnement du cœur. L’organisme a besoin d’oxygène pour vivre. Un réseau d’artères et de veines transporte le sang riche en oxygène dans l’organisme et renvoie le sang pauvre en oxygène vers les poumons. Le cœur est au centre de ce processus continu ; c’est un muscle battant de la taille du poing. Le cœur pompe

environ 5

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MEET THE JAKS: UNDERSTANDING THE ROLE OF JANUS KINASE INHIBITION IN RA Rheumatoid arthritis is characterized by the presence of multiple proinflammatory cytokines, which stimulate inflammation. Biological disease-modifying antirheumatic drugs can bind soluble cytokines or soluble receptors in the extracellular...

Duration: 02:20

Published: 8/9/2019

Topics:

* Cellular

* Drug

* Immune

* Tests and Treatments

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TUMOR MUTATIONAL BURDEN Tumor Mutational Burden, or TMB, has the potential to be used as a biomarker. It is used to measure the number of mutations found in a tumor. The mutations in a tumor lead to the derivation of neoantigens, which are proteins that result fro...

Duration: 01:31

Published: 8/9/2019

Topics:

* Cancer

* Cellular

* Drug

* Immune

* Tests and Treatments

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CENTRAL SENSITIZATION SYNDROME The sensation of pain often conveys that damage has occurred to tissue in the body. Pain signals follow a neural pathway from the point of damage to the spinal cord and up to the brain. However, in Central Sensitization Syndrome, the magnit...

Duration: 00:44

Published: 8/9/2019

Topics:

* Conditions

* Neurology

* Orthopedic

* Skeletal

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HFPEF

Heart failure is the inability of the heart to provide adequate blood to the body and its organs at rest or during exercise, or at the expense of elevated filling pressure. Heart failure with preserved ejection fraction or “heff-peff” is ch...

Duration: 02:41

Published: 8/9/2019

Topics:

* Circulatory

* Conditions

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REAL WORLD EVIDENCE

Randomized controlled clinical trials (or RCTs) are considered the gold standard for assessing the efficacy of a therapy (or intervention). The patients entering these trials have a set of clinical characteristics that are relatively homoge...

Duration: 02:41

Published: 8/9/2019

Topics: Previous Next

01:08

01:08

SELECTIVE ESTROGEN RECEPTOR MODULATORS (SERMS) Topics: Drug, Reproductive, Tests and Treatments

01:23 01:23

PSORIATIC ARTHRITIS

Topics: Cellular, Drug, Immune, Tests and Treatments

02:20

02:20

MEET THE JAKS: UNDERSTANDING THE ROLE OF JANUS KINASE INHIBITION IN RA Topics: Cellular, Drug, Immune, Tests and Treatments

01:31

01:31

TUMOR MUTATIONAL BURDEN Topics: Cancer, Cellular, Drug, Immune, Tests and

Treatments

00:44

00:44

CENTRAL SENSITIZATION SYNDROME Topics: Conditions, Neurology, Orthopedic, Skeletal

02:41 02:41

HFPEF

Topics: Circulatory, Conditions

02:41 02:41

REAL WORLD EVIDENCE

05:45

05:45

UNDERSTANDING IDIOPATHIC PULMONARY FIBROSIS (IPF) Topics: Conditions, Respiratory

01:29

01:29

MECHANISM AND INHIBITION OF AIRWAY INFLAMMATION IN ASTHMA Topics: Cellular, Conditions,

Drug, Immune,

Respiratory, Tests and

Treatments

02:03 02:03

ANALGESICS

Topics: Cellular, Drug, Neurology, Orthopedic, Tests and Treatments

05:32 05:32

BIOLOGIC DRUGS

Topics: Drug

01:08

01:08

IMMUNE CHECKPOINT IMMUNOTHERAPY Topics: Cancer, Cellular, Drug, Immune, Tests and

Treatments

01:23

01:23

JAK-STAT INHIBITION IN GVHD Topics: Digestive, Immune, Tests and Treatments

01:40

01:40

BONE METASTASIS IN PROSTATE CANCER Topics: Cancer, Cellular, Drug, Reproductive, Skeletal, Tests and Treatments

01:01

01:01

ANGIOTENSIN AS A VASOPRESSOR Topics: Circulatory, Urinary

01:55

01:55

SCHIZOPHRENIA DRUG CLASSES Topics: Drug, Neurology, Tests and Treatments

04:59

04:59

MATCHING-ADJUSTED INDIRECT COMPARISON

03:46 03:46

KEYTRUDA

Topics: Cancer, Cellular, Drug, Immune, Tests and

Treatments

00:49 00:49

PSORIASIS

Topics: Conditions, Immune, Integumentary (Skin), Tests and Treatments

02:15

02:15

EARLY NEURAL DEVELOPMENT Topics: Neurology, Pediatric

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TRENDING CONDITIONS

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WHAT KIND OF MOSQUITO SPREADS THE ZIKA VIRUS?

ZIKA VIRUS

Viruses are infectious agents that grow and multiply in living cells and can cause diseases. The Zika virus is typically spread to humans through contact with mosquitoes. The mosquito species that transmit the Zika virus have distinct blac...

Duration: 01:46

Published: 9/14/2016

Topics:

* Conditions

* Immune

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DID YOU KNOW THAT 1 IN 8 WOMEN WILL BE DIAGNOSED WITH BREAST CANCER DURING THEIR LIFETIME?

BREAST CANCER

The female breast is primarily composed of fatty tissue and mammary glands. Mammary glands drain into the lactiferous sinus, which connects them to the nipple. During pregnancy, mammary glands swell in order to accommodate milk production. ...

Duration: 00:58

Published: 11/16/2015

Topics:

* Cancer

* Conditions

* Reproductive

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ACCORDING TO THE CDC, 7 MILLION PEOPLE IN THE US LIVE WITH UNDIAGNOSED

DIABETES.

DIABETES

During the digestive process, the foods that we eat are converted into glucose, commonly known as blood sugar. Glucose circulates in the bloodstream and is used as food for the body's cells. But the cells cannot absorb glucose alone. A hor...

Duration: 01:32

Published: 11/16/2015

Topics:

* Conditions

* Digestive

* Endocrine

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ARE YOU ONE OF THE 50 MILLION PEOPLE IN THE US WITH NASAL ALLERGIES?

ALLERGIES

An allergy occurs when the body reacts to substances it can't tolerate. The substances, like tree pollen or dust mites, are called environmental antigens, or allergens, and are normally harmless. But the immune system of a person with aller...

Duration: 01:30

Published: 11/16/2015

Topics:

* Conditions

* Immune

* Pediatric

* Respiratory

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01:46 01:46

ZIKA VIRUS

Topics: Conditions, Immune

01:14 01:14

ASTHMA

Topics: Conditions, Pediatric,

Respiratory

01:02 01:02

NEAR /FAR SIGHTEDNESS Topics: Conditions, Eye

01:57 01:57

INSULIN DELIVERY

Topics: Drug, Endocrine Left

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647 Videos

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CANCER

64 Videos

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CELLULAR

188 Videos

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CHEMISTRY

94 Videos

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CIRCULATORY

182 Videos

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CONDITIONS

240 Videos

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DIGESTIVE

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40 Videos

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INTEGUMENTARY (SKIN)

65 Videos

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42 Videos

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NEUROLOGY

101 Videos

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ORTHOPEDIC

90 Videos

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55 Videos

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REPRODUCTIVE

116 Videos

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RESPIRATORY

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