AP BIOLOGY

ANIMAL PHYSIOLOGY

HUMAN CIRCULATION

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Which one describes a task performed by the circulatory system?

A	creating red blood cells
B	sending messages to the brain
C	transport waste materials out from body

Explanation:

Detailed explanation-1: -The heart, blood and blood vessels work together to service the cells of the body. Using the network of arteries, veins and capillaries, blood carries carbon dioxide to the lungs (for exhalation) and picks up oxygen. From the small intestine, the blood gathers food nutrients and delivers them to every cell.

Detailed explanation-2: -As cells use the oxygen and nutrients delivered by the arteries they create waste products, such as carbon dioxide. The veins then pick up this waste and deliver it around the body for it to be disposed of and then deliver the deoxygenated blood back to the heart.

Detailed explanation-3: -The circulatory system is the “transportation system” for the body, and blood serves as the transport vehicle. Just as trucks deliver food, clothes, and other goods to houses and stores, blood circulates around the body, carrying and delivering the oxygen and nutrients needed by each cell.

Detailed explanation-4: -Oxygen, nutrients and hormones are delivered around the body in the blood and carbon dioxide and other waste products are removed.

There is 1 question to complete.