| 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: | neural crest cell migration |
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| Synonyms: | |
| Definition: | The characteristic movement of cells from the dorsal ridge of the neural tube to a variety of locations in a vertebrate embryo. |
| Ontology: | GO: Biological Process [GO:0001755] QuickGO AmiGO |