Assertion: acetylcholine | /r/CapableOf | attach to receptor
Facets:
value: on the muscle
type: LOCATION
Source sentences:
text: When acetylcholine attaches to receptors on the membrane of the muscle fiber, it triggers an electrical charge that quickly travels from one end of the muscle fiber to the other, causing it to contract.
text: Acetylcholine binds or attaches to receptors on the muscle and makes the muscle contract.