Term: pharyngeal arch 2 dorsal margin
Name: pharyngeal arch 2
Synonyms: hyoid arch, visceral arch 2
Definition: The second pharyngeal arch, also known as the hyoid arch, forms jaw support structures. Anteriorly positioned cranial neural crest cells, which align with rhombomeres 4/5, contribute to the hyoid arch structures including the ceratohyal and hyosymplectic cartilages.
Ontology: Anatomy Ontology [ZFA:0001611]

Name: dorsal margin
Synonyms:
Definition: Anatomical margin that is located on the dorsal side of body or body part.
Ontology: Spatial Ontology [BSPO:0000679]