Levator Labii Superioris

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The Levator Labii Superioris is a muscle of facial expression of the mouth. The muscles of facial expression of the mouth are:

• Levator Labii Superioris Alaeque Nasi (also a muscle of fascial expression of the nose)
• Levator Labii Superioris
• Zygomaticus Minor
• Zygomaticus Major
• Levator Anguli Oris
• Risorius
• Depressor Anguli Oris
• Depressor Labii Inferioris
• Mentalis
• Buccinator
• Orbicularis Oris
• Platysma

ATTACHMENTS:

• Maxilla to the upper lip.

ACTIONS:

• Elevates the upper lip.

NOTES:

1. Labii superioris in Latin means upper lip.
2. The contraction of the levator labii superioris to lift the upper lip can contribute to the facial expression of smugness, contempt, or disdain.