short note on heart ??
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The heart is a muscular organ in most animals, which pumps blood through the blood vessels of the circulatory system. The pumped blood carries oxygen and nutrients to the body, while carrying metabolic waste such as carbon dioxide to the lungs.
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The Heart is an internal organ Located between the lungs in the middle of the chest, the heart pumps blood through the network of arteries and veins known as the cardiovascular system. It sends blood around your body,The blood provides your body with the oxygen and nutrients it needs. It also carries away waste.
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thebrainlymaster1:
good explanation and a nice picture.
awesome
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