Frontalis & Occipitalis Platysma Orbicularis oculi Obribularis oris Zygomaticus Levator labii superioris Origin Occipital bone and the mastoid process of the temporal bone Insertion Skin and the fascia of the muscles around the eyes and nose Action Raises scalp back, wrinkles forehead and raises eyebrows Origin Fascia of upper thorax over pectoralis major and deltoid muscle Insertion Mandible, skin of lower face Action Frowning, tensing of the neck Origin Maxillary and frontal bone Insertion Skin around the eyes Action Sphincter muscle; opens and closes the eye Origin Muscles around the mouth, maxilla and mandible Insertion Skin around the lips Action Closes the lips Puckers lips Origin Both from zygomatic bone Insertion Major: corner of mouth Minor: skin/muscle of lip Action Major: draws the angle of the mouth up (smile) Minor: pulls the upper lip backward and outward (frown) Origin Lower margins of the orbits Insertion Skin and muscles of the lips Action The Elvis muscle Origin Maxillary and mandible Insertion Muscle fibers of the orbicularis oris Action Chewing, whistling Masseter Raises jaw Temporalis Raises jaw Medial pterygoid Closes the jaw and moves it side to side Lateral pterygoid Opens the jaw, and moves it side to side Origin Zygomatic arch & maxilla Insertion Ramus of mandible Action Raises jaw Elevates the mandible and closes mouth Origin Parietal Insertion Mandible Action Elevates and retracts mandible Side to side movement Origin Sphenoid & ramus of mandible Insertion Ramus of mandible (medial) Condyle of mandible (lateral) Action Elevates mandible, side to side movement