Multiple choice

Which of the following cranial nerves controls sound production?

  1. Facial

  2. Trochlear

  3. Vagus

  4. Hypoglossal
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C Correct answer
Explanation

The vagus nerve (CN X) controls the larynx and is essential for speech and sound production. It innervates the vocal cords via the recurrent laryngeal nerve. The facial nerve (CN VII) controls facial expression, trochlear (CN IV) controls superior oblique eye muscle, and hypoglossal (CN XII) controls tongue movement.

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