| Name: | germ ring |
|---|---|
| Synonyms: | |
| Definition: | Embryonic structure that forms as a thickened annulus at the blastoderm rim. The germ ring is thickened because it is the involuting margin of the blastoderm. |
| Ontology: | Anatomy Ontology [ZFA:0000111] |
| Name: | ventral margin |
|---|---|
| Synonyms: | |
| Definition: | Anatomical margin that is located on the ventral side of the body or body part. |
| Ontology: | Spatial Ontology [BSPO:0000684] |