mention any four functions of heart and blood
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he heart has four chambers: two atria and two ventricles. The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle. The right ventricle pumps the oxygen-poor blood to the lungs. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle.
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a heart is filter our blood . it have arteies and veins.
it is an important very impotant part of our body.
blood is peovide energy and its work is transpotaion energy to every body it is made up by bone marrow.
it acts army in our body.
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