Sweat glands that produce perspiration when stimulated are innervated only by the ________ fibers.
A) sympathetic
B) parasympathetic
C) somatic
D) afferent

Question

Quizplus · Accepted Answer

Sweat glands are innervated only by sympathetic fibers, which release acetylcholine as their neurotransmitter. This allows for the production of perspiration in response to stimuli such as heat or emotional stress. Parasympathetic fibers do not innervate these glands directly, and somatic fibers primarily innervate skeletal muscles rather than sweat glands. Afferent fibers carry sensory information towards the central nervous system and do not innervate glands or muscles directly.

Sweat Glands That Produce Perspiration When Stimulated Are Innervated Only