The _________ system helps the body maintain homeostasis by giving it the nutrients it needs to perform different functions.

Homeostasis is the equilibrium or stability of the internal environment of a cell or a body. This is necessary for maintenance and growth of the cell or body, since the external environment may not be stable and favorable at all the times. Homeostasis requires the constant supply of nutrients and removal of waste from the body. In the body, the cardiovascular system helps in maintenance of homeostasis by supplying the nutrients to various parts of the body and removing the waste materials.

Cardiovascular system is also known as the circulatory system and consists of the heart, blood vessels and the blood. The nutrients and the waste materials are carried around the body by the blood. The nutrients are transported to the cells, while the waste materials (removed from the cells) are transported back. The heart acts as the pump for continuous blood flow and continuous nutrient/waste transport.

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