Following statement is true regarding first pharyngeal arch: (A) Maxillary and Mandibular prominences are formed by first arch, (B) Maxilla and Zygomatic bone are formed by intermembranous ossification, (C) Posterior belly of digastric is formed by first arch, (D) Facial nerve is nerve supply of first arch
Answer is A. The first branchial arch is closely related to the developing skull.it soon shows two subdivisions, called maxillary and mandibular processesRef: Human Embryology, Inderbir Singh, 10th edition, page no: 147