| Namespace | MPheno.ontology | Obsolete | false |
| description | a retrogressive impairment of function or destruction of the cells comprising the transient structure derived from the inner cell mass which lies above the hypoblast; the epiblast tissue gives rise to the three primary germ layers (ectoderm, definitive endoderm, and mesoderm) and to the extraembryonic mesoderm of the visceral yolk sac, the allantois, and the amnion |
