| Term: | pharyngeal arch 1 posterior region |
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| Note: | This page represents a term created by the combination ("post-composition") of two ontology terms. For more information on the individual terms, click the hyperlinked name. |
| Name: | pharyngeal arch 1 |
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| 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: | posterior region |
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| Synonyms: | |
| Definition: | Anatomical region posteriorly located on the body or body part. |
| Ontology: | Spatial Ontology [BSPO:0000072] |