Question

multiple choice question
what type of fibers innervate the smooth muscle in an arterial wall?
sympathetic and parasympathetic
somatic
sympathetic only
parasympathetic only

Explanation:

The smooth muscle in an arterial wall is innervated by the sympathetic nervous - system. The sympathetic fibers can cause vasoconstriction or vasodilation, regulating blood pressure and blood flow. The parasympathetic nervous system generally does not innervate the smooth muscle in arterial walls, and somatic fibers innervate skeletal muscles, not smooth muscles in blood vessels.

Answer:

C. Sympathetic only