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How heart pump |
| Answer» \tHeart is the muscular pumping organ which pushes the blood around the body.\tBlood transports carbon dioxide to the lungs for oxygen from the cells for removal and carries oxygen from the lungs to the heart and heart pump the blood to all the cells of the body.\tHeart has different chambers such as right atrium, left atrium, right ventricle, left ventricle to prevent the mixing of oxygenated blood and carbon dioxide rich blood.\tThe thin walled upper chamber, left atrium, relaxes and oxygenated blood enters it.\tLeft atrium then contracts and the next chamber left ventricle, expands and thus blood enters it.\tWhen the left ventricle contracts the blood is pumped out to all the cells of the body. | |