Which of the following is NOT a branch of CN V1?

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

Which of the following is NOT a branch of CN V1?

Explanation:
The key idea is which nerves come from the ophthalmic division (V1) versus the maxillary division (V2) of the trigeminal nerve. The supratrochlear and supraorbital nerves are branches of the frontal nerve, which is itself a branch of V1, and they supply the forehead and upper eyelid region. The infratrochlear nerve comes from the nasociliary nerve, also a V1 branch, and serves the medial canthus area. The infraorbital nerve, however, is a branch of the maxillary division (V2) and travels through the infraorbital foramen to supply the midface, including the lower eyelid, cheek, and upper lip. So the infraorbital nerve is not part of V1.

The key idea is which nerves come from the ophthalmic division (V1) versus the maxillary division (V2) of the trigeminal nerve. The supratrochlear and supraorbital nerves are branches of the frontal nerve, which is itself a branch of V1, and they supply the forehead and upper eyelid region. The infratrochlear nerve comes from the nasociliary nerve, also a V1 branch, and serves the medial canthus area. The infraorbital nerve, however, is a branch of the maxillary division (V2) and travels through the infraorbital foramen to supply the midface, including the lower eyelid, cheek, and upper lip. So the infraorbital nerve is not part of V1.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy