Term: opercle dorsal-most region
Name: opercle
Synonyms: opercles
Definition: Dermal bone that articulates anteriorly with the hyomandibula. The opercle is paired and typically the largest bone of the opercular series. It is derived from the neural crest and is located in 2nd pharyngeal arch.
Ontology: Anatomy Ontology [ZFA:0000250]

Name: dorsal-most region
Synonyms: dorsal-most, dorsalmost
Definition:
Ontology: Spatial Ontology [BSPO:0000038]