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Describe double circulation in human beings.why …

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Describe double circulation in human beings.why it is necessary?

Posted by Roshan Thakur 8 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Ankit Kumar 8 years, 3 months ago

In human heart blood flow in twice so it form double circulation. From the heart oxygenated blood carry through dorsalarota and reaches to the tissue when exchange of gases occurs after that deoxygenated blood transfer from tissue to the heart with the help of venacava . This deoxygenated blood again move from the heart to pulmonary artery to the lungs for further purification. After purification purified blood again move to the heart with the help of pulmonary vein.

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CBSE > Class 10 > Science