1. Muscles of the Facial Expressions

2. Muscles of the Head & Neck
Include muscles that move the face, tongue, and larynx
Responsible for verbal and nonverbal communication, eating, and control of eye movements
Subdivided into groups:
Muscles of facial expression
Muscles of mastication
Muscles of the tongue
Muscles of the pharynx & larynx
Muscles of the eye

3. Muscles of Facial Expression
Originate on the surface of the skull
Insertions are woven into the superficial fascia and the dermis therefore, when they contract the skin moves
Innervated by the facial nerve
Make study cards – you will be tested on each and everyone!

4. Muscles of Facial Expression - Mouth
Buccinator – Compresses cheeks
Orbicularis oris - Compresses, purses lips

5. F:Depressor labii inferioris - Depresses lip
A:Levator labii superioris – Elevates upper lip
D:Risorius - Draws corner of mouth to the side
E:Depressor anguli oris – Depresses corner of mouth
C:Zygomaticus major, B:Zygomaticus minor – retracts and elevates corner of mouth

6. Mentalis – Elevates and protrudes lower lip

7. Muscles of Facial Expression - The Eye
B: Corrugator supercilii – Pulls skin inferiorly and anteriorly; wrinkles brow
C: Orbicularis
oculi – Closes
eye

8. Levator palpebrae superioris – Elevates upper eyelid

9. Muscles of Facial Expression - Nose
Procerus – moves nose, changes position and shape of nostrils
Muscles of Facial Expression - Nose
Nasalis – compresses bridge, depresses tip of nose; elevates corners of nostrils

10. Muscles of Facial Expression - Ear
Temporoparietalis – tenses scalp, moves pinna of ear

11. Muscles of Facial Expression - Scalp
Frontalis – Raises eyebrows, wrinkles forehead
Occipitalis – Tenses and retracts scalp

12. Muscles of Facial Expression - Neck
Platysma – tenses skin of neck, depresses mandible

13. Quick Quiz Orbicularis oris Orbicularis oculi Frontalis Buccinator
Zygomaticus
major & minor