| Name: | axis |
|---|---|
| Synonyms: | midline |
| Definition: | Organism subdivision running along the rostral-caudal axis of the early embryo. |
| Ontology: | Anatomy Ontology [ZFA:0000092] |
| 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] |