In arteries,the thickest layer of the wall is the
A)tunica media.
B)tunica externa.
C)tunica intima.
D)tunica adventitia.
E)None of these answers is correct.

Question

Quizplus · Accepted Answer

The thickest layer of the artery wall is the tunica media, which is composed primarily of smooth muscle fibers and elastic tissue. The tunica externa (also called the adventitia) is the outermost layer and is composed of connective tissue, while the tunica intima is the innermost layer and is composed of endothelial cells.

In Arteries,the Thickest Layer of the Wall Is the