Anatomy & Histology · single question
Which arteries supply the lower lip?
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Correct answer: D. Inferior labial artery + Mental artery
- A. ❌ The facial artery alone is incomplete — the mental artery also contributes significantly.
- B. ❌ The submental artery supplies the submental region (chin/floor of mouth), not primarily the lower lip.
- C. ❌ The inferior alveolar artery itself supplies the mandibular teeth/bone — it is the MENTAL artery (its terminal branch) that supplies the lower lip, not the inferior alveolar artery directly.
- D. ✅ Correct. The lower lip is supplied by: (1) the INFERIOR LABIAL artery (branch of the facial artery) and (2) the MENTAL artery (terminal branch of inferior alveolar artery emerging through the mental foramen).
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