Blood flow distribution can be adjusted by adjusting the diameter of the
A) arteries.
B) capillaries.
C) arterioles.
D) veins.
E) venules.

Question

Quizplus · Accepted Answer

Arterioles are the smallest branches of arteries and they have the ability to constrict or dilate to adjust blood flow and redistribute it to different parts of the body. This is known as the regulation of peripheral resistance. The diameter of capillaries, veins and venules cannot be easily adjusted and is primarily determined by the specific tissue or organ they supply.

Blood Flow Distribution Can Be Adjusted by Adjusting the Diameter