Inferior labial artery

Artery: Inferior labial artery
The labial coronary arteries, the glands of the lips, and the nerves of the right side seen from the posterior surface after removal of the mucous membrane.
The arteries of the face and scalp. (Inferior labial labeled at bottom right.)
Latin ramus labialis inferior arteriae facialis, arteria labialis inferior
Gray's subject #144 555
Supplies lower lip
Source facial artery   
Vein inferior labial vein

The inferior labial artery (inferior labial branch of facial artery) arises near the angle of the mouth; it passes upward and forward beneath the Triangularis and, penetrating the Orbicularis oris, runs in a tortuous course along the edge of the lower lip between this muscle and the mucous membrane.

It supplies the labial glands, the mucous membrane, and the muscles of the lower lip; and anastomoses with the artery of the opposite side, and with the mental branch of the inferior alveolar artery.

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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.