The submental vein is one of the important veins in the circulatory system of humans and animals. Its function is to ensure blood flow to the chin and lower jaw, as well as to the upper torso.
The vein of the subchin collects blood from the capillaries and vessels of the skin of the face, the corners of the mouth, the mucous membrane of the gums, tongue, neck, and partially the skin under the upper and lateral walls of the face. Shows and circulatory coverage