Head and Neck Anatomy: Part II – Musculature
Levator Anguli Oris

The levator anguli oris lies deep to the other muscles we have discussed so far. It originates on the maxilla directly below the infraorbital foramen and inserts at the corner of the mouth. Unlike the zygomaticus muscles it angles distally to attach at the corner of the mouth so rather than drawing the corner of the mouth upwards and laterally it draws it upwards and medially.