what is heart explain it 50words
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a hollow muscular organ that pumps the blood through the circulatory system by rhythmic contraction and dilation.
human me 4 chamber hote hai 2 atria and two ventricles
human me 4 chamber hote hai 2 atria and two ventricles
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The human heart is an organ that pumps blood throughout the body via the circulatory system, supplying oxygen and nutrients to the tissues and removing carbon dioxide and other wastes.
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