Anatomy & Histology · single question
A patient has Bell's Palsy (CN VII paralysis). Which nerve branch will NOT be affected?
Show answer and explanation
Correct answer: A. Infraorbital nerve (CN V2)
✓ A) Infraorbital nerve is correct — it will NOT be affected.
The infraorbital nerve is a branch of the trigeminal nerve (CN V2), not CN VII. Bell's Palsy specifically affects CN VII (facial nerve), causing paralysis of facial muscles. The zygomatic and frontal branches are both branches of CN VII and will be affected, causing inability to close the eye and raise the eyebrow.
The infraorbital nerve is a branch of the trigeminal nerve (CN V2), not CN VII. Bell's Palsy specifically affects CN VII (facial nerve), causing paralysis of facial muscles. The zygomatic and frontal branches are both branches of CN VII and will be affected, causing inability to close the eye and raise the eyebrow.
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