Assertion: acetylcholine | /r/CapableOf | exert direct effect
Facets:
value: on vascular tone
type: TRANSITIVE-OBJECT
value: by binding to muscarinic receptors
type: MANNER
Source sentences:
text: Acetylcholine in the serum exerts a direct effect on vascular tone by binding to muscarinic receptors present on vascular endothelium.