The Exchange of Nutrients and Gases Between the Blood and Tissue

Question

The exchange of nutrients and gases between the blood and tissue cells is the primary function of
A) veins.
B) arteries.
C) arterioles.
D) capillaries.
E) venules.

Accepted Answer

Capillaries are the smallest blood vessels and are responsible for allowing the exchange of nutrients and gases between the blood and tissue cells. Veins, arteries, arterioles, and venules have other functions in the circulatory system, such as carrying blood to and from the heart or regulating blood flow.