Inferior labial artery

The inferior labial artery (inferior labial branch of facial artery) arises near the angle of the mouth as a branch of the facial artery; 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.

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.)
SourceFacial artery
VeinInferior labial vein
SuppliesLower lip
LatinRamus labialis inferior arteriae facialis, arteria labialis inferior
Anatomical terminology

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 incorporates text in the public domain from page 555 of the 20th edition of Gray's Anatomy (1918)

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