Definitions:

1. A blood vessel that supplies blood to the lips. NOUN
   • Trauma to the labial artery can cause significant bleeding.
2. An artery that is a branch of the facial artery that supplies the lips of the mouth. NOUN
   • The labial artery is often used as a site for pulse oximetry.
3. Either of two branches of the facial artery of which one is distributed to the upper and one to the lower lip. NOUN
   • Blockage to the labial artery can lead to tissue damage and infection.

Synonyms:

• arteria labialis
• buccal artery
• oral artery