Mental Nerve V3 Branch — FRCA Primary MCQ

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ModerateAnatomyMental Nerve V3 BranchFRCA Primary

The mental nerve is a terminal branch of which nerve?

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Correct answer: B — Inferior alveolar nerve (branch of V3)

The mental nerve is the terminal branch of the inferior alveolar nerve (a branch of the mandibular division V3 of the trigeminal nerve). It exits through the mental foramen (below the second premolar) providing sensory innervation to the chin / lower lip / and labial mucosa. Mental nerve block is used for lower lip procedures.

Reference: RCoA 2021 Primary FRCA Curriculum