The superior labial vein (v. labialis superior) is one of the important veins of the face, passing along and around the upper lip. This vein belongs to the peripheral venous system and is a continuation of the venous network of the nose and orbit.
Anatomy
The superior labial vein starts from the vein network of the nose and runs along the upper lip, along its edge. It then joins the veins at the corner of the mouth to form an angle known as the angle of Venosus. Here the superior labial vein also connects with the orbital vein and forms a large vein known as the facial vein (v. facialis).
Functions
The superior labial vein plays an important role in draining blood from the face and head. It connects with other veins to form large venous vessels, which then drain blood into the deep veins of the neck and the superior vena cava. It is also one of the ways in which infections spread, so any infections or diseases in this area can lead to serious consequences.
Diseases
Although the superior labial vein is a small vessel, it can be affected by various diseases. Some of these include venous insufficiency, thrombosis, infections, tumors and trauma. These conditions can cause tenderness, swelling, and discoloration of the skin in the upper lip area.
Treatment
Treatment of diseases of the superior labial vein depends on their type and severity. Mild cases may require local measures such as applying cold and elevating the upper body to reduce swelling. More serious cases may require surgery, such as to remove a blood clot or tumor.
In conclusion, the superior labial vein is an important component of the peripheral venous system of the face. It has important functions in draining blood and spreading infections. Treatment of diseases of the superior labial vein should be carried out under the supervision of a specialist.