Sympathetic Fibers, Postganglionic

Synonyms

Fiber, Postganglionic Sympathetic

Fibers, Postganglionic Sympathetic

Postganglionic Sympathetic Fiber

Postganglionic Sympathetic Fibers

Sympathetic Fiber, Postganglionic

Nerve fibers which project from sympathetic ganglia to synapses on target organs. Sympathetic postganglionic fibers use norepinephrine as transmitter, except for those innervating eccrine sweat glands (and possibly some blood vessels) which use acetylcholine. They may also release peptide cotransmitters.