CN V2 enters which foramen located within the greater wing of the sphenoid?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

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 enters which foramen located within the greater wing of the sphenoid?

Explanation:
Maxillary division of the trigeminal nerve passes from the middle cranial fossa into the pterygopalatine fossa through a circular opening in the greater wing of the sphenoid. That opening is the foramen rotundum, so CN V2 enters there. The other openings around this area have different contents: foramen ovale transmits the mandibular division, foramen spinosum carries the middle meningeal artery and small V3 branch, and foramen lacerum is largely nonfunctional in life. Thus, the foramen rotundum is the correct entry point for CN V2.

Maxillary division of the trigeminal nerve passes from the middle cranial fossa into the pterygopalatine fossa through a circular opening in the greater wing of the sphenoid. That opening is the foramen rotundum, so CN V2 enters there. The other openings around this area have different contents: foramen ovale transmits the mandibular division, foramen spinosum carries the middle meningeal artery and small V3 branch, and foramen lacerum is largely nonfunctional in life. Thus, the foramen rotundum is the correct entry point for CN V2.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy