Which division of the trigeminal nerve exits through the Foramen Rotundum?

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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

Which division of the trigeminal nerve exits through the Foramen Rotundum?

Explanation:
The trigeminal nerve splits into three divisions, each using a different skull opening. The ophthalmic division exits through the superior orbital fissure, the maxillary division exits through the foramen rotundum, and the mandibular division exits through the foramen ovale. The foramen rotundum is the passage for the maxillary division as it moves from the middle cranial fossa toward the pterygopalatine fossa, carrying sensory fibers to the midface. So the division exiting through the foramen rotundum is the maxillary division.

The trigeminal nerve splits into three divisions, each using a different skull opening. The ophthalmic division exits through the superior orbital fissure, the maxillary division exits through the foramen rotundum, and the mandibular division exits through the foramen ovale. The foramen rotundum is the passage for the maxillary division as it moves from the middle cranial fossa toward the pterygopalatine fossa, carrying sensory fibers to the midface. So the division exiting through the foramen rotundum is the maxillary division.

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