Quick Facts
Origin: Near the midpoint of the orbicularis oris muscle.
Course: Courses laterally along the upper lip to drain into facial vein.
Tributaries: None.
Drainage: Upper lip.
Related parts of the anatomy
Origin
The superior labial vein originates close to the midpoint of the orbicularis oris muscle in the upper lip region.
Course
The superior labial vein courses along the upper lip to drain into the facial vein near the lateral angle of the mouth.
Tributaries
The superior labial vein anastomosis with the superior labial vein of the opposite side. It may also receive ramifications from the nasal septum and the ala of the nose.
Structures Drained
The superior labial vein drains the region of the upper lip and lower nasal septum and lower lateral wall of the nose.
Learn more about this topic from other Elsevier products
Vein
A venous sinus is a vein with a thin wall of endothelium that is devoid of smooth muscle to regulate its diameter.
