Inferior Labial Artery, Anterior View

Description

Centered on the lower face in anterior view, the inferior labial artery is traced as a tortuous branch of the facial artery coursing medially within the lower lip, deep to orbicularis oris and adjacent to the labial glands. The vessel runs inferior to the vermilion border and anastomoses across the midline with its contralateral counterpart, while giving small muscular branches to depressor labii inferioris and surrounding perioral soft tissues. Superior and lateral to this focus, related facial vascular landmarks are implied, including the facial artery as it ascends toward the angle of the mouth and the mental region supplied by branches emerging near the mental foramen. Accurate placement of the inferior labial artery matters in lip laceration repair and in aesthetic and reconstructive procedures, because brisk bleeding can arise from the labial arterial arcade even with small mucosal wounds. During lower lip advancement flaps or wedge excisions, preserving the labial vessels helps maintain perfusion to the vermilion and reduces the risk of edge necrosis. The mental region also sits in a high traffic corridor for local anesthesia and implant planning, where proximity of the mental nerve and accompanying vessels can complicate dissection. Use this plate in head and neck anatomy teaching to orient learners to the facial artery’s branching pattern at the oral commissure, or in surgical education materials covering perioral incisions, flap design, and hemostasis in the lower lip. It also fits well in clinical reference content for emergency medicine and dentistry, where mental region injury and lower lip trauma are routine. Anatomical accuracy verified by SciePro's Medical Advisory Board.