The maxillary nerve, a division of which cranial nerve?

• A. Cranial Nerve VII (Facial)
• B. Cranial Nerve V (Trigeminal)
• C. Cranial Nerve IX (Glossopharyngeal)
• D. Cranial Nerve VI (Abducens)

Answer: (B)

The maxillary nerve is a division of the trigeminal nerve, which is cranial nerve V. The trigeminal nerve has three divisions, and the maxillary division (V2) provides sensory innervation to the midface, including the maxillary teeth, overlying skin, palate, and nasal regions. In terms of anatomy path, V2 exits the skull via the foramen rotundum and travels to the pterygopalatine fossa before giving branches such as the infraorbital nerve that supply the maxillary teeth and surrounding tissues. This is a sensory pathway, unlike the other cranial nerves listed: the facial nerve (VII) mainly governs facial expressions and some taste, the glossopharyngeal nerve (IX) handles taste and swallowing functions in the throat, and the abducens nerve (VI) controls eye movement.