Question

why is blood circulation in human heart called double circulation???​

Answer 1

Answer:

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Explanation:

The blood circulation in human heart is called double circulation because the blood passes through the heart twice in one complete cycle of the body – once through the right half in the form of deoxygenated blood and once through the left half in the form of oxygenated blood.

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Answer 2

Answer:

The blood circulation in human heart is called double circulation because the blood passes through the heart twice in one complete cycle of the body – once through the right half in the form of de-oxygenated blood and once through the left half in the form of oxygenated blood.

Explanation: