Assertion: serotonin | /r/HasProperty | synthesized in central nervous system
Facets:
value: by the serotonergic neurons
type: MANNER
Source sentences:
text: Specifically, serotonin is a monoamine neurotransmitter that is synthesized in the central nervous system by the serotonergic neurons and in the gastrointestinal tract by the enterochromaffin cells.