Assertion: taste bud's receptor | /r/CapableOf | spread throughout the fetus
Facets:
value: by the 20th week of gestation
type: TEMPORAL
Source sentences:
text: Cutaneous sensory receptors first appear in the perioral area of the human fetus in the 7th week of gestation and spread throughout the fetus by the 20th week of gestation, as outlined in Table