Question

Describe double circulation in human beings 0

Answer 1

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Here is ur answer

1.) The blood flows from all body parts is brought to the right atrium through vena cave, which pumps it into the right ventricle. From right ventricle blood id pumped to lung through pulmonary artery for oxygenation. This is first circulation.
2.) The oxygenated blood from the lungs is brought to the left atrium through pulmonary veins which pump it into the left ventricle. From the left ventricle oxygenated blood is distributed to all the parts of the body through aorta.