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Question
Explain the double circulation in human body.
Explain the double circulation in human body.
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Solution
De-oxygenated blood comes from the body to the right atrium, as it expands. Then it contracts to transfer the blood to the right ventricle causing it to dilate. The right ventricle, in turn, pumps it to the lungs for oxygenation. From the lungs, oxygenated blood is brought back to the left side chambers of the heart by pulmonary vein which is pumped to rest of the body by aorta.
De-oxygenated blood comes from the body to the right atrium, as it expands. Then it contracts to transfer the blood to the right ventricle causing it to dilate. The right ventricle, in turn, pumps it to the lungs for oxygenation. From the lungs, oxygenated blood is brought back to the left side chambers of the heart by pulmonary vein which is pumped to rest of the body by aorta.
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