what is blood circulation
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The blood circulatory system (cardiovascular system) delivers nutrients and oxygen to all cells in the body. It consists of the heart and the blood vessels running through the entire body. The arteries carry blood away from the heart; the veins carry it back to the heart.
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The blood circulation is the physiological transport process of arterial and/or venous blood through the vascular system and the heart chambers. It is driven by the heart's pump function.
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