Muscles of Face and Scalp

Question 0

occipital belly

Answer 0

O: lat 2/3 of sup nuchal line
I: epicranial aponeurosis
A: retracts scalp

Question 1

frontal belly

Answer 1

O: epicranial aponeurosis
I: skin and subcutaneous tisses of eyebrows and forehead 
A: elevates eyebrows
	protratracts scalp
	wrinkles forehead

Question 2

orbicularis oculi

Answer 2

O: medial orbital margin, med palpebral lig, lacrimal bone
I: skin around margin of orbit, sup/inf tarsi
A: closes eyelids
palpebral part– does so gently (blinking)
orbital part– does so tightly (winking)

Question 3

orbicular oris

Answer 3

O: med maxilla and mandible, deep surface of perioral skin,
angle of mouth
I: mucous membrane of lips
A: closes mouth, compresses and protrudes lips

Question 4

buccinator

Answer 4

O: mandible, alveolar process of mandible and maxilla,
pterygomandibular raphe
I: angle of mouth, orbicularis oris
A: presses cheek against molar teeth

Question 5

platysma

Answer 5

O: subcutaneous tissue of infra/supraclavicular regions
I: base of mandle, skin of cheek and lower lip, angle of mouth,
orbicularis oris
A: depresses mandible, tenses skin of inf face and neck