Assertion: chorion | /r/CapableOf | fuse with the allantois
Facets:
value: in insects
type: OTHER
value: in reptiles
type: OTHER
value: in birds
type: OTHER
Source sentences:
text: In reptiles and birds it fuses with the allantois.
text: In insects, the chorion fuses with the allantois (one of the four extraembryonic membranes) and this fusion, called the chorioallantoic membrane, facilitates the exchange of oxygen and carbon dioxide.