Term: germ ring ventral region
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 region
Synonyms:
Definition: Anatomical region ventrally located on the body or body part.
Ontology: Spatial Ontology [BSPO:0000084]