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.

Synonyms
- Neurotransmitter
- ACh
- Cholinergic messenger