In general, as an artery's diameter decreases, the artery walls show
A) a decrease in the relative amount of smooth muscle and an increase in the relative amount of elastic fibers.
B) an increase in the relative amount of smooth muscle and a decrease in the relative amount of elastic fibers.
C) an increase in relative amounts of smooth muscle and elastic fibers and a decrease in endothelium.
D) a decrease in both smooth muscle and elastic fibers and an increase in areolar connective tissue.

Question

Quizplus · Accepted Answer

As an artery's diameter decreases, the walls typically have more smooth muscle relative to elastic fibers to help regulate blood flow and pressure through vasoconstriction and vasodilation.

In General, as an Artery's Diameter Decreases, the Artery Walls