DESCRIBE DOUBLE CIRCULATION OF BLOOD IN …

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These three components work to paases blood through the heart twice per circuit. The right pump sends deoxygenerated blood to lungs where it becomes oxy genated and return back to heart = This method is called double circulation of blood

Double circulation is passage of the same blood through the heart once on right side and then on the left side in order to complete one cycle. ?????? ??????????? ??? ??? ??????????:- 1. ????????? ???????????:- It is movement of blood from heart to the lungs and back. Deoxygenated blood of the body enters the right auricle, passes into right ventricle which pumps it into pulmonary arch. With the help of two separate pulmonary arteries the blood passes into the lungs. Here, it is oxygenated. Oxygenated blood comes back to left auricle of heart through four pulmonary veins, two from each lungs. 2. ???????? ??????????? :- It is the circilation of the blood between heart and different parts of the body except lungs. Oxygenated blood receive by left auricle passes into left ventricle. The left ventricle pumps it into aorta for supply into different body parts including walls of the heart by means of arteries.

The human ciculatory system has three key components:blood vessels , blood and heart