[NEEDS EXPERT REVIEW] Which cranial nerve is responsible for facial muscle movement?
Difficulty: Medium
About this MCQ
Medium USMLE item. Correct choice: A. Facial nerve (CN VII).
- A. Facial nerve (CN VII) ✓
- B. Trigeminal nerve (CN V)
Why not B: “Trigeminal nerve (CN V)” is not Facial nerve (CN VII).
- C. Vagus nerve (CN X)
Why not C: “Vagus nerve (CN X)” is not Facial nerve (CN VII).
- D. Hypoglossal nerve (CN XII)
Why not D: “Hypoglossal nerve (CN XII)” is not Facial nerve (CN VII).
Correct answer
A. Facial nerve (CN VII)
Explanation
Facial nerve (CN VII) (option A) is the accepted answer to “[NEEDS EXPERT REVIEW] Which cranial nerve is responsible for facial muscle movement”. Option B (Trigeminal nerve (CN V)) is a different value from Facial nerve (CN VII). Option C (Vagus nerve (CN X)) is a different value from Facial nerve (CN VII). Option D (Hypoglossal nerve (CN XII)) is a different value from Facial nerve (CN VII). Keep Facial nerve (CN VII) as the USMLE fact for this stem.
Source: Original practice question, MCQsHub
Tags: American Exams, USMLE, Needs Review, Neuroanatomy
Submitted by: MCQsHub Editorial
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