| Name: | hypoblast |
|---|---|
| Synonyms: | mesendoderm |
| Definition: | The inner of the two layers of the blastoderm that forms during gastrulation and give rise to the definitive mesoderm and endoderm. |
| Ontology: | Anatomy Ontology [ZFA:0000117] |
| Name: | convergent extension |
|---|---|
| Synonyms: | |
| Definition: | The morphogenetic process in which an epithelium narrows along one axis and lengthens in a perpendicular axis. |
| Ontology: | GO: Biological Process [GO:0060026] QuickGO AmiGO |