ABSTRACT
The anterior part of the auricle The maxilla, palatine bone, and zygoma-all
develop from the maxillary process of the first branchial arch
The mandible-develops from the mandibular process
The muscles of mastication-temporalis, masseter, medial and lateral pterygoids
2. The second branchial arch leads to the formation of:
The remaining portions of the external ear The muscles of facial expression, posterior
belly of the digastric, stylohyoid, and stapedius muscles
F. Skeletal Deformities
1. Jaw deformity: the most conspicuous deformity of craniofacial microsomia is hypoplasia of the mandible on the affected side.
