The vena labialis inferior is also commonly referred to as the lower lip vein. This vein runs along the bottom of the lower lip and drains into the external jugular vein. Other synonyms for the vena labialis inferior include the inferior labial vein, labial vein, and submental vein. These terms are often used interchangeably in medical literature and discussions. The vena labialis inferior is important for blood circulation in the face and is used in medical procedures such as facial reconstructive surgeries. Understanding the synonyms for this vein can help medical professionals communicate effectively and accurately about the anatomy of the lower face.