Question

short note on double circulation

Answer 1

A circulatory system in which blood travels twice through the heart in one complete cycle of the body is called Double circulation. In the human circulatory system, the pathway of blood from the heart to the rest of the body and back to the heart is called systemic circulation; and the pathway of blood from the heart to the lungs and back to the heart is called pulmonary circulation. These two types of circulation taken together makes Double circulation.

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Answer 2

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here is your answer.

The blood pumped by the right ventricles the pulmonary artery, whereas the left ventricle pumps blood into the aorta.


The deoxygeneted blood pumped into the pulmonary artery is passed on to the lungs from where the oxygenated blood is carries by the pulmonary veins into the left atrium.



This pathway constitute the pulmonary circulation. The oxygenated blood entering the aorta is carried out by a network of arteries, arterioles and capillaries to the tissue from where the deoxygeneted blood is collected by a system of venules, vein and venacava and emptied into the right atrium.



This is the systematic circulation which provides o2 and other essential nutrients and takes co2 and other harmful substance away from elimination.




A unique vascular connection exist between the digestive track and liver called hepatic portal system.

The hepatic blood vein carries blood from the intestine to the liver before it is delivered to the systematic circulation.



A special coronary system is present in the body exclusively for the circulation.




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