Question

Describe the flow of blood through the heart of human beings with the help of a suitable diagram

Answer 1

The carbon dioxide rich blood has to rich the lung for the carbon dioxide to be removed. The oxygen rich blood is then pumped to the rest of the body. It comes from the lungs from the left atrium. It relaxes when it is collecting blood. It then contract when the left ventricle expands. So that blood is transported to it. When the muscular left ventricle contacts the blood is pumped out to the body.
Deoxygenated blood come from the body to the upper chamber on the right atrium. As the atrium contacts the right ventricle which in terms pump it to the lungs for oxygenation.

Answer 2

(a) oxygenated blood from lungs enters through the pulmonary vein into left atrium.

(b) The left atrium relaxes while collecting the oxygenated blood.Then the left atrium contract and the blood goes into left ventricle.

(c) The left ventricle relaxes while receiving the oxygenated blood then it contract and the blood flows into different organs and parts of the body.

(d) The deoxygeneted blood from different parts of the body entres the right atrium through superior and inferior venacava.

(e) The right atrium contract and the blood flows into right ventricle.

(f) The right ventricle relaxes while receiving the deoxygeneted blood then it contract and the blood flows into lungs for oxygenation through pulmonary artery.