| Name: | extension |
|---|---|
| Synonyms: | yolk extension |
| Definition: | The posterior elongated region of the yolk cell that forms during the segmentation period. |
| Ontology: | Anatomy Ontology [ZFA:0000106] |
| Name: | posterior-most region |
|---|---|
| Synonyms: | posterior-most, posteriormost |
| Definition: | |
| Ontology: | Spatial Ontology [BSPO:0000037] |