Relier Pairs Facial Muscle ActionsVersion en ligne facial muscles par Dr. David Myers 1 buccinator 2 frontalis 3 orbicularis oris 4 orbicularis oculi 5 occipitalis 6 temporalis 7 masseter elevation of the mandible, as in chewing elevation, retraction, lateral and medial excursion of the mandible encircles mouth, closes lips, protrudes lips as in kissing. retracts scalp, fixes galea aponeurosis so frontalis can act on eyebrows compresses cheek against teeth and gums elevates eyebrows and draws scalp forward and wrinkles skin of forehead closes eye in blinking, squinting, and sleep.