Assertion: umbilical cord's allantois | /r/CapableOf | develop as second outpouching
Facets:
value: from projects
type: OTHER
Source sentences:
text: Between 12 and 16 weeks of gestation, the allantois or urachus develops as a second outpouching from the primitive gut and projects into the connecting stalk, and its blood vessels develop into the vessels of the umbilical cord (Fig 1).