Question

Define double circulation

Answer 1

The human utilize a double circulaory system.this means we have two loops in our body in which blood circulates.one is oxygenated and another is deoxygenated.

Answer 2

Answer :-

In some organisms, blood flows twice through the heart during the process of purification. This phenomenon is known as the "Double circulation of blood".

Explanation :-

The phenomenon of double circulation of blood is observed in many organisms (including human beings).

In this process, first the impure(Deoxygenated) blood from various parts of the body, is carried to the heart by the veins.

This marks the end of the 1st circulation.

Then, the heart pumps the impure (Deoxygenated) blood to the lungs through the pulmonary artery for oxygenation (Purification and addition of oxygen).

Then oxygenated blood flows back to the heart through the pulmonary vein from where it is pumped to the different parts of the body through the arteries.

This marks the end of the 2nd circulation.

Thus, the double circulation of blood in our body is carried out in the above stated manner.