Explain the construction and working of. heart
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working of heart
Explanation:
human heart work as a double pump .it receive a deoxygenated blood from body at a same time it receive oxygenated blood from lungs
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the heart works as two pumps one on the right and one on the left working simultaneously. Blood flow from the right atrium to the right ventricle and then is pumped to the lungs to recieve oxygen. From the lungs to the left atrium then to the left ventricle
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