Which Layer of the Arterial Wall is Responsible for Vasoconstriction

Question

Which layer of the arterial wall is responsible for vasoconstriction?
A)tunica interna
B)tunica media
C)tunica externa
D)tunica albuginea
E)tunica fascia

Accepted Answer

Tunica media is the layer of the arterial wall responsible for vasoconstriction due to its smooth muscle cells that can contract and narrow the blood vessel.