Tuesday, February 1, 2011

Double Circulatory System


1. Double Circulatory system consists of the pulmonary circulation and systemic circulation.

2. It is called Double circulatory system BECAUSE the blood passes through the heart TWICE for each circuit of the body.

3. Its advantage:

Oxygenated blood returns to the heart to be pumped again before being distributed to the rest of the body. This INCREASES the pressure of the blood and the rate of flow, thereby SPEEDING UP the delivery of oxygen to the tissues and organs !

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