Q:

What are the three functions of the circulatory system?

A:

The three functions of the circulatory system include maintaining normal body temperature, helping the body fight disease and providing the ideal chemical balance for homeostasis. The circulatory system consists of the heart, arteries, veins and blood.

The organs and vessels in the circulatory system regulate the flow of blood, oxygen and other gases, hormones and nutrients to and from cells. Three types of circulation occur in the body. In pulmonary circulation, oxygen-depleted blood moves from the heart to the lungs, while oxygenated blood moves from the lungs to the heart.

Systemic circulation moves oxygenated blood from the heart to the rest of the body, and coronary circulation ensures that the heart has adequate blood to work properly. This ensures that waste is carried away and that the body maintains a stable internal environment.

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Related Questions

  • Q:

    What is the main function of the circulatory system?

    A:

    The main function of the circulatory system is to move blood and lymph through the body. Doing this transports nutrients and oxygen to the cells of the body and removes waste products such as carbon dioxide. The circulatory system is necessary to regulate temperature and pH balance and protect the body from diseases.

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  • Q:

    What is the structure of the circulatory system?

    A:

    The basic circulatory system of vertebrate animals, which are those with a backbone, consists of a heart, the blood and the arteries and system of blood vessels. The heart pumps the blood first to the arteries and then throughout the body via the system of blood vessels.

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  • Q:

    How does the endocrine system help maintain homeostasis?

    A:

    The endocrine system creates and releases hormones that transport to various parts of the body to control the body's reactions to things like stress, pain, growth and nutrient intake. These hormones can be thought of as messengers that give directions to different parts of the body, allowing the body to react to changes and maintain homeostasis.

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  • Q:

    How does the urinary system maintain homeostasis?

    A:

    The urinary system sustains homeostasis by eliminating wastes from the body, regulating blood acidity levels and controlling the levels of metabolites and electrolytes in the blood, such as sodium, potassium and calcium. The urinary system also maintains a stable internal environment by assisting the osmoregulation of blood volume and pressure.

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