Double circulation- It is defined as the process in which blood passes 2 times through the heart during one complete cycle. This process involves two types of blood circulations:
(i) Systemic circulation: In this method, the circulation of oxygenated blood takes place from the left ventricle of the heart to the aorta. Then a network of arteries, arterioles, and capillaries supplies this oxygenated blood to various tissues in the body. From tissues, the deoxygenated blood is collected by a system of venules, veins, and vena cava, and is emptied into the right atrium.
(ii) Pulmonary circulation: Thi circulation involves the circulation of deoxygenated blood from the right ventricle to the pulmonary artery, which then carries blood to the lungs for getting oxygenated. Then, the oxygenated blood from the lungs is carried by the pulmonary veins into the left atrium.Significance of double circulation: In double circulation, complete separation of oxygenated and deoxygenated blood takes place which allows a more efficient supply of oxygen to the body cells.Answered by Pragya Singh | 11 months ago