Permitting the exchange of nutrients and gases between the blood and tissue cells is the primary function of ________.

Question

Quizplus · Accepted Answer

Capillaries are the smallest blood vessels in the body and their primary function is to allow for exchange of nutrients and gases between the blood and tissue cells. Arteries and arterioles carry blood away from the heart, while veins carry blood back to the heart. While these blood vessels play important roles in circulation, they do not directly facilitate exchange between the blood and tissue cells like capillaries do.

Permitting the Exchange of Nutrients and Gases Between the Blood