Nouvelle 48+ Pretrematic Nerve Of First Pharyngeal Arch
Nouvelle 48+ Pretrematic Nerve Of First Pharyngeal Arch. Differentiates into stapes, styloid process, stylohyoid ligament. The first pharyngeal arch also mandibular arch (corresponding to the first branchial arch or gill arch of fish), is the first of six pharyngeal arches that develops in fetal life during the fourth week of development. What do pharyngeal arches look like? Philtrum of the lip, the maxilla and incisors, and the primary palate.