what are the functions of heart
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The 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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The four major functions of the cardiovascular system are:
To transport nutrients, gases and waste products around the body.
To protect the body from infection and blood loss.
To help the body maintain a constant body temperature ('thermoregulation')
To help maintain fluid balance within the body.
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