what is double circulation and why is it necessary?

Asked by prgayathri | 6th Jul, 2008, 08:10: AM

Expert Answer:

In double circulation, blood flows twice through the heart, during each cycle of passage through the body.

Double circulation is important to keep the oxygenated and deoxygenated blood separate from each other in the body and prevent their mixing. Such separation allows a highly efficient supply of oxygen to the body. Another advantage of a double circulatory system is that blood can be pumped to the rest of the body at a higher pressure.

Answered by  | 6th Jul, 2008, 01:38: PM

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