tell me essay on humam circulatary system
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The human circulatory system takes care of the circulation of blood in our body. It consists of blood, blood vessels, and the heart. Blood is very essential for our body as it consists of water, salts, red blood cells, white blood cells, platelets and protein. The blood vessels help circulate blood to parts of our body. Lastly, the heart is a muscle which pumps bad blood to good blood. Without the circulatory sytem we would be unable to live.
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