which vein carry pure blood in heart?And how hearts work...
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which vein carry pure blood in heart?And how hearts work...
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There were four chambers in heart . First the impure blood enters through superior and inferior vena cava in right atrium then it goes through tricuspid valve in right ventricle . Then it goes in lungs for purification through pulmonary artery . Then it comes from lungs through pulmonary vein in left atrium then it goes through a bicuspid valve in left ventricle . Then the pure blood will distributed through aorta .
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