Superior Labial Vein

Description

Prominent on the anterior face, the superior labial vein courses within the upper lip, collecting small venules from the orbicularis oris region and converging toward the facial vein along the nasolabial fold. Superiorly, tributaries can be inferred to communicate with the lateral nasal and angular veins near the ala and medial canthus, while inferiorly the superior labial venous plexus relates to the oral vestibule and the vermilion border. Deep to the vessel map, the maxilla and anterior nasal aperture provide fixed bony landmarks, and in the neck the internal jugular vein runs inferior to the angle of the mandible, paired with the common carotid artery. Arteries appear in red and veins in blue. A clear teaching contrast. Venous drainage of the upper lip is not a mere surface detail, it is part of the clinically relevant facial venous network with valveless connections to the deep facial vein and pterygoid venous plexus, and through the angular and ophthalmic veins toward the cavernous sinus. That pathway explains why infections in the upper lip and paranasal region, including furuncles manipulated by patients, carry a recognized risk of septic cavernous sinus thrombosis. For proceduralists, the caliber and position of the superior labial vein also matter during upper lip laceration repair, cleft lip surgery planning, and filler injection, where inadvertent intravascular placement can have downstream consequences through facial venous and arterial anastomoses. Faculty will find this plate well suited for head and neck anatomy lectures that pair osteology with surface vasculature, and for surgical teaching files discussing the danger triangle of the face and venous routes of spread. It also fits textbook and journal figures on facial drainage patterns, with enough context in the carotid and jugular vessels to anchor the lip veins to the central circulation. Anatomical accuracy verified by SciePro's Medical Advisory Board.