Phenotype: pharyngeal arch 1 structure, 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 1
Synonyms: mandibular arch, visceral arch 1
Definition: The first pharyngeal arch, also known as the mandibular arch, forms the jaw. The first pharyngeal arch gives rise to elements of the jaw, with the most anteriorly positioned cranial neural crest cells contributing to mandibular arch structures, including Meckel's and palatoquadrate cartilages that constitute the lower and upper jaw respectively.
Ontology: Anatomy Ontology [ZFA:0001612]
Name: structure
Synonyms: conformation, relational structural quality
Definition: A morphology quality inhering in a bearer by virtue of the bearer's relative position, shape, arrangements and connectivity of an organism's various parts; the pattern underlying its form.
Ontology: Phenotypic Quality Ontology [PATO:0000141]