Taber's Medical Dictionary
acetylcholine
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(ă-set″ĭl-kō′lēn″)
[acetyl + choline]
ABBR: ACh An ester of choline that is the neurotransmitter at somatic neuromuscular junctions, the entire parasympathetic nervous system, sympathetic preganglionic fibers (cholinergic fibers), and at some synapses in the central nervous system. It is inactivated by the enzyme cholinesterase.
SEE: cholinergic fiber
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