Head and neck anatomy · CDA

Which cranial nerve supplies the muscles of mastication?

  1. Facial nerve (CN VII)
  2. Trigeminal nerve (CN V3)
  3. Vagus nerve (CN X)
  4. Accessory nerve (CN XI)
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Correct answer: Trigeminal nerve (CN V3)

The mandibular division of the trigeminal nerve innervates the muscles of mastication. These include the masseter, temporalis, and pterygoid muscles.

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