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5. Explain : The heart is our pump.
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Your heart is sort of like a pump, or two pumps in one. The right side of your heart receives blood from the body and pumps it to the lungs. The left side of the heart does the exact opposite: It receives blood from the lungs and pumps it out to the body.
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Blood is purified by heart by the help of pelmonery arteries which carries oxygneted blood from heart to parts of the body and pelmonery veins carries de oxygneted blood from body parts to heart.
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