Cupid’s Bow- The Cupid’s Bow is at the Vermillion Border of the Upper Lip beneath the tip of the nose. The peaks of this area coincide with the Philtral Columns giving a prominent ‘bow’ appearance to the Upper Lip.
Philtrum- The Philtrum is a vertical indentation/groove which extends in the middle area of the Upper Lip between Cupid’s Bow and the nose.
Oral Mucosa- This is the mucous membrane lining the inside of the lips/mouth
Commissure- The commissure is the corner of the mouth where the Vermillion Border of the Upper Lip meets that of the Lower Lip. It is important in facial appearance functions, especially smiling.
Nasolabial Fold- These are 2 skin folds running from each side of the nose to the corners of the mouth. They separate the cheeks from the upper lip.