Phenotype: pharyngeal arch 2 drooping, abnormal
Note: This statement combines anatomy and/or ontology terms with phenotype quality terms to create a complete phenotype (EQ) statement. For detailed information on individual terms, click the hyperlinked term name.
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: drooping
Synonyms: sagging
Definition: To bent or hang downwards.
Ontology: Phenotypic Quality Ontology [PATO:0002165]