The blood circulatory system transports nutrients and oxygen throughout the body. The system is comprised of the heart and blood vessels. More »

The circulatory system allows blood to circulate throughout the body and transport nutrients, oxygen, hormones, carbon dioxide and blood cells to every part of the body in order to nourish it and help the body fight dise... More »

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According to the National Center for Biotechnology Information, the primary function of the circulatory system is to pass substances back and forth between blood and the body's tissues. The NCBL notes this system is also... More »

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The main function of the circulatory system is transporting blood, oxygen, hormones, nutrients and other important substances throughout the body. The circulatory system is actually two separate systems of circulation, p... More »

The main function of the cardiovascular system is to transport nutrients, waste products and gases around the body. Moreover, it protects the body from blood loss and infection, helps the body keep a constant body temper... More »

The main function of capillaries is enabling the exchange between water, oxygen, carbon dioxide, nutrients and many other substances between blood and the surrounding tissues. The capillaries also connect the arterioles ... More »

The circulatory and respiratory systems work together to give the body the oxygen it needs. They also team up to get rid of carbon dioxide, which is a waste product in the body. More »