The Characteristic of the Arteriole That Allows It to Function

Question

The characteristic of the arteriole that allows it to function as a resistance vessel is its
A) thin membrane.
B) porous membrane.
C) valves.
D) smooth muscle.

Accepted Answer

The smooth muscle in arteriole walls allows them to contract or relax, leading to changes in diameter and modulation of blood flow. This ability to adjust the diameter based on physiological demands makes arterioles function as resistance vessels. Thin or porous membranes and valves are not significant factors in determining arteriolar resistance.