FCEM(SA) Part I Practice Questions - Fellowship Of The College Of Emergency Medicine Of South Africa - Part I (Basic Sciences) Exam

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Which cranial nerve provides motor innervation to the muscles of mastication and is at risk in deep facial trauma and inferior alveolar nerve blocks?

Facial nerve (CN VII) Glossopharyngeal nerve (CN IX) Trigeminal nerve — mandibular division (V3) Hypoglossal nerve (CN XII)

Correct Answer:

Trigeminal nerve — mandibular division (V3)

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