describes the structure and function of heart
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Explanation:
Structure of Heart:
It is made up of four chambers and several valves that regulate the normal flow of blood within the body. Two chambers called atria are located in the upper portion of the heart and receive oxygen-free blood.
Function of Heart:
The primary function of the heart is to pump blood throughout the body. It supplies oxygen and nutrients to the tissues and removes carbon dioxide and wastes from the blood.
Conclusion:
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Explanation:
the human heart is an organ that pumps blood through out the body via the circulatory system ,supplying oxygen and nutrients. and remove the tissues. the tissues of a body need a constant supply of nutrition
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