A 20-year-old female with a lesion on the lower lip needs a biopsy. Which arteries supply the lower lip?

The LOWER LIP blood supply comes primarily from: (1) INFERIOR LABIAL ARTERY — a branch of the facial artery that runs along the inner surface of the lip, and (2) MENTAL ARTERY — a branch of the inferior alveolar artery that exits through the mental foramen. The superior labial artery supplies the upper lip. The lingual artery supplies the tongue. Knowledge of these vessels is critical for surgery to control bleeding. A is correct.