CN V2 is known as the ___________ division of the trigeminal nerve.

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Prepare for the NBEO Ocular Anatomy Posterior Segment and Cranial Nerves Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

CN V2 is known as the ___________ division of the trigeminal nerve.

Explanation:
The trigeminal nerve splits into three divisions that supply different facial regions: ophthalmic (V1) for the forehead and eye area, maxillary (V2) for the midface, and mandibular (V3) for the lower face and chewing muscles. CN V2 is the maxillary division, which provides sensation to the midface—cheek, upper lip, upper teeth, and parts of the nasal cavity and palate. It carries sensory fibers only (no motor), differentiating it from the mandibular division, which also carries motor fibers to muscles of mastication. The other listed nerve is a different cranial nerve altogether (the sixth nerve, controlling the lateral eye muscle). So CN V2 is known as the maxillary division.

The trigeminal nerve splits into three divisions that supply different facial regions: ophthalmic (V1) for the forehead and eye area, maxillary (V2) for the midface, and mandibular (V3) for the lower face and chewing muscles. CN V2 is the maxillary division, which provides sensation to the midface—cheek, upper lip, upper teeth, and parts of the nasal cavity and palate. It carries sensory fibers only (no motor), differentiating it from the mandibular division, which also carries motor fibers to muscles of mastication. The other listed nerve is a different cranial nerve altogether (the sixth nerve, controlling the lateral eye muscle). So CN V2 is known as the maxillary division.

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