The exchange of materials, nutrients, and gases between the blood and the tissues is the primary function of the _____.

Question

The exchange of materials, nutrients, and gases between the blood and the tissues is the primary function of the  _____.

Quizplus · Accepted Answer

Capillaries are the smallest blood vessels in the body and are responsible for the exchange of gases, nutrients, and waste products between the bloodstream and the tissues. Arteries carry oxygen-rich blood away from the heart, arterioles regulate blood flow, and venules carry blood towards the heart, but none of these vessels are directly involved in gas exchange.

The Exchange of Materials, Nutrients, and Gases Between the Blood