MRCP UK EXAMINATIONS

Detailed explanation-1: -About halfway between the orbital apex and the orbital rim, the maxillary nerve turns medially to enter the infraorbital canal as the infraorbital nerve. Named branches from the main trunk are meningeal, ganglionic, zygomatic, posterior, middle and anterior superior alveolar and infraorbital nerves.

Detailed explanation-2: -The labyrinthine segment gives off three branches: the greater superficial petrosal nerve (containing parasympathetic fibers for the lacrimal gland and taste fibers from the palate), the lesser petrosal nerve, and the external petrosal nerve.