Question

explain double circulations in human ​

Answer 1

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• In the human body, blood circulates through the heart twice.

• Once it goes through the heart during pulmonary circulation and second time during systemic circulation.

• Hence, circulation in human beings is called double circulation.

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Answer 2

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The human circulatory system is a double circulatory system. It has two separate circuits and blood passes through the heart twice: the pulmonary circuit is between the heart and lungs. the systemic circuit is between the heart and the other organs.

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