The layer(s) of an artery wall that is/are responsible for vasoconstriction and vasodilation is/are the:

Question

Quizplus · Accepted Answer

The tunica media is the layer primarily responsible for vasoconstriction and vasodilation as it contains smooth muscle cells and can contract and relax to change the diameter of the artery. The tunica externa provides support and protection, while the tunica interna (intima) is the innermost layer and is responsible for reducing friction between blood and the vessel wall. While the other layers can contribute to vasoconstriction and vasodilation indirectly, it is primarily the tunica media that controls this process.

The Layer(s) of an Artery Wall That Is/are Responsible for Vasoconstriction