Question

Describe the flow of blood through the heart of human beings.

Answer 1

Flow of blood through heart - 

1. Deoxygenated blood from different organs comes to the right atrium through the vena cava.

2. From the right atrium, blood goes to the right ventricle. The tricuspid valve between the right atrium and right ventricle prevents the backflow of blood.

3. From the right ventricle, blood goes to the lungs through the pulmonary artery. Inside the lungs, carbon dioxide is removed from the blood and oxygen enters the blood.
4. From the lungs, blood goes to the left atrium through the pulmonary vein.
5. From the left atrium, blood goes to the left ventricle.
6. From the left ventricle, blood is pumped into the aorta so that it can be supplied to different organs.