Nasolabial groove

Nasolabial Groove

The Nasolabial Groove is a prominent feature of the human face, extending from the nose to the corners of the mouth. It is also known as the Nasolabial Fold or Laugh Line.

Anatomy

The Nasolabial Groove is formed by the underlying facial muscles, particularly the Levator Labii Superioris and the Zygomaticus Major muscles. These muscles are responsible for facial expressions such as smiling and laughing, hence the term "laugh line". The groove is more pronounced in some individuals due to factors such as age, genetics, and lifestyle habits.

Clinical Significance

The depth and prominence of the Nasolabial Groove can be an indicator of a person's age and overall health. Deep nasolabial folds can be a sign of aging, as the skin loses elasticity and the underlying facial muscles weaken. They can also be a symptom of certain medical conditions, such as Bell's Palsy, which can cause facial muscle weakness or paralysis.

In cosmetic surgery, procedures such as dermal fillers or facelifts can be used to reduce the appearance of deep nasolabial folds. These procedures aim to restore a more youthful appearance by smoothing out the skin and strengthening the underlying facial muscles.

See Also

• Facial anatomy
• Cosmetic surgery
• Aging (biology)