A flattened, almost circular bilaminar plate of cells formed when the inner cell mass (aka embryoblast) forms two epithelial layers, each of a distinct lineage, separated by an extracellular basement membrane: the external (dorsal) layer is called the epiblast and the internal (ventral) layer is called the hypoblast (aka primitive endoderm); together, they compose the bilaminar embryonic disc. [ ]
Synonyms: bilaminary embryonic disc bilaminary germ disc
Term information
- UMLS:C1283997 (ncithesaurus:Bilaminar_Embryonic_Disc)
- FMA:293863
- NCIT:C34112
- null:http://en.wikipedia.org/wiki/Bilaminar_disc
- null:http://linkedlifedata.com/resource/umls/id/C1283997
pheno_slim, early_development