Insertion: Modiolus of mouth
Artery: Facial artery
Nerve: Facial nerve
Action: Smile (elevates angle ofmouth)
Levator anguli oris arises from the canine fossa, immediately below the infraorbital foramen; its fibers are inserted into the angle of the mouth, intermingling with those of the Zygomaticus, Triangularis, and Orbicularis oris.