Why is circulation of blood in man known as double circulation?
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Explanation:
It is called a double circulatory system because blood passes through the heart twice per circuit. The right pump sends deoxygenated blood to the lungs where it becomes oxygenated and returns back to the heart.
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1st:double circulation is in ALL humans
there are 2 pathways in it known as 1)Pulmonary circulation:blood between the heart and the lungs,changes of de-oxygenated and oxygenated blood.
Systemic circulation: process of blood between heart and all body parts.
overall:Bloodpasses 2 times through a heart during 1 cardiac cycle hence the circulation of blood in man called as double circulation .
hope it helps!!
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