Q36
Describe flow of blood through the heart of human beings with the help of diagram.
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(a) oxygenated blood from lungs enters through the pulmonary vein into left atrium. ... Then the left atrium contract and the blood goes into left ventricle. (c) The left ventricle relaxes while receiving the oxygenated blood then it contract and the blood flows into different organs and parts of the body.
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