Frontalis (action=elevating the eyebrow)
Orbicularis oculi (action=closes eyelids either gently or tightly depending on which part of the muscle is used)
Orbicularis oris (action=controls shape and movements of the lips)
Buccinator (action=maintains the tightness of the cheeks and presses them against the teeth during chewing)
Platysma (action=depresses the mandible and lower lip and tenses the skin of the anterior neck)
Bell’s palsy is an inflammatory process of the facial nerve. The condition may also make it difficult to close the eye on the affected side of your face