Also found in: Dictionary, Thesaurus, Legal, Financial, Encyclopedia.
Related to cholinergic fiber: Cholinergic Nerve Fibers
Etymology: Gr, chole, bile, ergon, work; L, fibra
a nerve fiber of the autonomic nervous system that releases the neurotransmitter acetylcholine. Cholinergic fibers include all preganglionic fibers, all postganglionic sympathetic fibers to sweat glands, and efferent fibers innervating skeletal muscle.
Any preganglionic fiber, postganglionic parasympathetic fiber, postganglionic sympathetic fiber to a sweat gland, or efferent fiber to skeletal muscle.
See also: fiber