Explain the schematic sectional view of the human heart.
Explain the schematic sectional view of the human heart.
Heart:
- A fist-sized organ, the heart circulates blood throughout our body. It serves as our circulatory system's main organ.
- Chambers of the heart: The heart is made up of 4 chambers.
- These chambers aid in the circulation of blood.
- The right atrium receives deoxygenated blood and pumps it to the right ventricle; the right ventricle pumps blood to the pulmonary artery, which carries it to the lungs for oxygenation.
- This oxygenated blood is returned to the left atrium via the pulmonary vein, which is further pumped to the left ventricle.
- From the left ventricle, oxygenated blood is pumped to the aorta, which supplies the rest of the body.
- There are superior vena cava and Inferior vena cava which transport deoxygenated blood from the upper and lower parts of the body respectively to the right atrium.
- There is a pulmonary artery that carries deoxygenated blood from the heart to the lungs for oxygenation.
- Oxygenated blood is carried from the lungs to the heart via the pulmonary vein.
- The aorta and the systemic aorta carry oxygenated blood from the heart to the rest of the body.
- Our hearts have valves that function as doors.
- To allow blood to go from one to another part of our hearts, they open and close.
- They aid in ensuring that blood flows appropriately and in the right direction.
Tricuspid valve:
Blood can move from the right atrium to the right ventricle when the tricuspid valve opens,
Pulmonic valve:
Three leaflets make up the pulmonary valve (or pulmonic valve), and divide the pulmonary artery from the right ventricle.
Mitral valve:
The left atrium, the top left chamber, and the left ventricle are separated by the mitral valve (bicuspid valve),
The aortic valve:
The left ventricle and aorta are divided by the aortic valve, which opens to let blood flow from the left ventricle of the heart out through the aorta into the body.
Purkinje fibers:
They are present in the sub-endocardium and conduct impulses rapidly across the ventricles.
There are four chambers in our hearts.
- On each side of the heart, there are two chambers: an atrium (plural: atria) at the top and two ventricles at the bottom.
- Right atrial: our right atrium receives oxygen-poor blood from two big veins. Our upper body's blood is carried via the superior vena cava. Blood from the lower body is brought up by the inferior vena cava. The blood is then pumped to our right ventricle by the right atrium.
- Right ventricle: Through the pulmonary artery, the lower right chamber transports oxygen-poor blood to the lungs. The blood is oxygenated again by the lungs.
- Left atrial: The blood travels to the left atrium via the pulmonary veins after being oxygenated by the lungs. The blood is pumped to our left by this higher chamber.
- Left ventricle: Compared to the right, the left ventricle is a little bigger. It transfers oxygen-enriched blood to the rest of our body.
Heart:
- A fist-sized organ, the heart circulates blood throughout our body. It serves as our circulatory system's main organ.
- Chambers of the heart: The heart is made up of 4 chambers.
- These chambers aid in the circulation of blood.
- The right atrium receives deoxygenated blood and pumps it to the right ventricle; the right ventricle pumps blood to the pulmonary artery, which carries it to the lungs for oxygenation.
- This oxygenated blood is returned to the left atrium via the pulmonary vein, which is further pumped to the left ventricle.
- From the left ventricle, oxygenated blood is pumped to the aorta, which supplies the rest of the body.
- There are superior vena cava and Inferior vena cava which transport deoxygenated blood from the upper and lower parts of the body respectively to the right atrium.
- There is a pulmonary artery that carries deoxygenated blood from the heart to the lungs for oxygenation.
- Oxygenated blood is carried from the lungs to the heart via the pulmonary vein.
- The aorta and the systemic aorta carry oxygenated blood from the heart to the rest of the body.
- Our hearts have valves that function as doors.
- To allow blood to go from one to another part of our hearts, they open and close.
- They aid in ensuring that blood flows appropriately and in the right direction.
Tricuspid valve:
Blood can move from the right atrium to the right ventricle when the tricuspid valve opens,
Pulmonic valve:
Three leaflets make up the pulmonary valve (or pulmonic valve), and divide the pulmonary artery from the right ventricle.
Mitral valve:
The left atrium, the top left chamber, and the left ventricle are separated by the mitral valve (bicuspid valve),
The aortic valve:
The left ventricle and aorta are divided by the aortic valve, which opens to let blood flow from the left ventricle of the heart out through the aorta into the body.
Purkinje fibers:
They are present in the sub-endocardium and conduct impulses rapidly across the ventricles.
There are four chambers in our hearts.
- On each side of the heart, there are two chambers: an atrium (plural: atria) at the top and two ventricles at the bottom.
- Right atrial: our right atrium receives oxygen-poor blood from two big veins. Our upper body's blood is carried via the superior vena cava. Blood from the lower body is brought up by the inferior vena cava. The blood is then pumped to our right ventricle by the right atrium.
- Right ventricle: Through the pulmonary artery, the lower right chamber transports oxygen-poor blood to the lungs. The blood is oxygenated again by the lungs.
- Left atrial: The blood travels to the left atrium via the pulmonary veins after being oxygenated by the lungs. The blood is pumped to our left by this higher chamber.
- Left ventricle: Compared to the right, the left ventricle is a little bigger. It transfers oxygen-enriched blood to the rest of our body.
