Question

plzz mates give me the pathway of double circulation

Answer 1

Lets say it stars from the left auricle.Then left ventricle.Left ventricle pumps the blood to whole body.The blood returns to the heart(right auricle) through the vena cavas.Then it is pumped to the right ventricle.Right ventricle pumps the blood to the lungs.The blood from the lungs return to the hear (left auricle) Thus for 1 circulation of blood to the whole body,it enters the heart 2 times.
Thus it is termed as double circulation.
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