| 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: | paraxial mesoderm |
|---|---|
| Synonyms: | paraxial mesenchyme |
| Definition: | Mesoderm which is lateral to the neural tube on both sides. |
| Ontology: | Anatomy Ontology [ZFA:0000255] |