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