Anatomy & Histology · single question
Which nerve innervates the lower lip?
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Correct answer: A. Mental nerve
- A. Correct. The mental nerve, a terminal branch of the inferior alveolar nerve exiting the mental foramen, provides sensory innervation to the lower lip and chin.
- B. The inferior labial artery is a blood vessel, not a nerve, and is a distractor option.
- C. The lingual nerve innervates the tongue/floor of mouth, not the lower lip.
- D. The (long) buccal nerve innervates buccal mucosa/gingiva of mandibular molars, not the lower lip.
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