జీర్ణక్రియ మరియు శ్వాస వ్యవస్థల లైనింగ్లో అభివృద్ధి చెందుతున్న ఇండోర్ జెర్మ్ పొర,

hypoblasts's Usage Examples:

sheets of cells from posterior side of avian blastoderms from hypoblasts and area opaca endoderm.

separating sheets of cells from posterior side of avian blastoderms from hypoblasts and area opaca endoderm.

as a margin separating sheets of cells from posterior side of avian blastoderms from hypoblasts and area opaca endoderm.

FGFs secreted by hypoblasts during avian gastrulation play a role in stimulating a Wnt signaling pathway.

Gastrulation ends when epiboly of the hypoblasts closes the blastopore.