Term Name:	inner cell mass derived hypoblast
Synonyms:	hypoblast, primary endoderm, primitive endoderm, proximal endoderm, visceral endoderm
Definition:	A thin monolayer of small cuboidal cells that make up the lower layer of the bilaminar embryonic disc, beneath the epiblast.
Ontology:	Uberon Ontology [UBERON:0008776]