Levator labii superioris
musculus levator labii superioris
Part of the dilators of the mouth; retracts (elevates) and/or everts the upper lip and deepens the nasolabial sulcus (sadness).

In the full entry
The full entry, with every field, sources, quiz and clinical correlations, is in the atlas.
- Origin
- Insertion
- Innervation
- Blood supply