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Inferior labial artery

The inferior labial artery (Latin: arteria labialis inferior) is a blood vessel that arises from the facial artery near the edge of the lower lip. This branch of the facial artery supplies skin and muscles of the lower lip.

The inferior labial artery passes anteriorly beneath the depressor anguli oris muscle penetrating the orbicularis oris. It runs along the margin of the lower lip between the orbicularis oris muscle and the mucous membrane of the lip. The inferior labial artery forms anastomoses with the opposite inferior labial artery and with the mental artery - a branch of the inferior alveolar artery.