Definition, Meaning & Synonyms

acetylcholine

Noun

ˌæs.ɪˈtɪl.koʊ.lin

Definition

A neurotransmitter that plays a key role in transmitting messages in the nervous system.

Examples

Acetylcholine is released at the neuromuscular junction to trigger muscle contraction.
Deficiencies in acetylcholine can lead to cognitive decline, such as in Alzheimer’s disease.
Some medications work by inhibiting the breakdown of acetylcholine to enhance its effects.

Meaning

Acetylcholine is a chemical messenger in the body that helps relay signals between nerve cells, particularly in muscle movements and functions of the autonomic nervous system.