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

This is just here as a test because I lose it

Term information

Subsets

pheno_slim, early_development

depicted by

http://upload.wikimedia.org/wikipedia/commons/e/e3/Gray21.png

has broad synonym

embryonic shield

germinal disk

germinal disc

embryonic disc

has related synonym

bilaminar disk

id

UBERON:0000091