MEDICAL PHYSIOLOGY

Detailed explanation-1: -Capillaries are delicate blood vessels that deliver blood, nutrients and oxygen to cells.

Detailed explanation-2: -Arterioles connect with even smaller blood vessels called capillaries. Through the thin walls of the capillaries, oxygen and nutrients pass from blood into tissues, and waste products pass from tissues into blood. From the capillaries, blood passes into venules, then into veins to return to the heart.

Detailed explanation-3: -At each body part, a network of tiny blood vessels called capillaries connects the very small artery branches to very small veins. The capillaries have very thin walls, and through them, nutrients and oxygen are delivered to the cells.