2.  Frontalis & Occipitalis  Platysma  Orbicularis oculi  Obribularis oris  Zygomaticus  Levator labii superioris

4.  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

6.  Origin Fascia of upper thorax over pectoralis major and deltoid muscle  Insertion Mandible, skin of lower face  Action Frowning, tensing of the neck

8.  Origin Maxillary and frontal bone  Insertion Skin around the eyes  Action Sphincter muscle; opens and closes the eye

10.  Origin Muscles around the mouth, maxilla and mandible  Insertion Skin around the lips  Action Closes the lips Puckers lips

12.  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)

14.  Origin Lower margins of the orbits  Insertion Skin and muscles of the lips  Action The ‘Elvis’ muscle

16.  Origin Maxillary and mandible  Insertion Muscle fibers of the orbicularis oris  Action Chewing, whistling

17.  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

18.  Origin Zygomatic arch & maxilla  Insertion Ramus of mandible  Action Raises jaw Elevates the mandible and closes mouth

19.  Origin Parietal  Insertion Mandible  Action Elevates and retracts mandible Side to side movement

20.  Origin Sphenoid & ramus of mandible  Insertion Ramus of mandible (medial) Condyle of mandible (lateral)  Action Elevates mandible, side to side movement