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What is the job of the circulatory system?

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The human circulatory system keeps blood, oxygen and nutrients flowing through the body. ... 2nd century A.D.: the Greek physician Galen documents how blood vessels carry blood, identifies venous (dark red) and arterial (brighter and thinner) blood and notes that each has a separate functions. read more

The human circulatory system keeps blood, oxygen and nutrients flowing through the body. A description of the circulatory system's function, organs and diseases that affect it. read more

The main jobs of the circulatory system is to transport blood and serum to all tissues and organs, nutrients including oxygen and glucose to cells, and waste products from the cells to the intestinal tract and kidneys. read more

Another function of the circulatory system is completed by systemic circulation, which takes blood rich in oxygen from the heart throughout the body, and takes blood low in oxygen back to the heart. This process involves the ventricles, arteries and capillaries. read more

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