Which layer of the blood vessel is made of tough connective tissue?

Question

Quizplus · Accepted Answer

The tunica externa, also known as the adventitia, is made of tough connective tissue that provides structural support to the blood vessel. The tunica media is made of smooth muscle and is responsible for regulating the diameter of the blood vessel, while the tunica intima is the innermost layer that comes into contact with the blood and is made of a layer of endothelial cells. The endothelium is the thin layer of cells that lines the entire circulatory system, including the heart and blood vessels.

Which Layer of the Blood Vessel Is Made of Tough