Submental vein

The submental vein (Latin: vena submentalis) is a venous blood vessel that arises from a venous network in the submental triangle. After originating, the submental vein turns laterally, passes over the submandibular gland and near the angle of the mandible drains into the facial vein. The submental vein collects deoxygenated blood from the submandibular and sublingual glands, mylohyoid muscle, and skin in the submental area.

Submental vein (colored) on its course to join the facial vein
Submental vein on its course to join the facial vein by Anatomy Next