facial muscles - actions

Question 1

action of buccinator

Answer 1

compresses cheeks

Question 2

action of depressor labii inferioris

Answer 2

depresses lower lip

Question 3

action of levator labii superioris

Answer 3

elevates upper lip

Question 4

action of levator anguli oris

Answer 4

elevates corner of mouth

Question 5

action of mentalis

Answer 5

elevates and protrudes lower lip

Question 6

action of orbicularis oris

Answer 6

compresses, purses lips

Question 7

action of risorius

Answer 7

draws corner of mouth to the side

Question 8

action of depressor anguli oris

Answer 8

depresses corner of mouth

Question 9

action of zygomaticus major

Answer 9

retracts and elevates corner of mouth

Question 10

action of zygomaticus minor

Answer 10

retracts and elevates upper lip

Question 11

action of corrugator super cilii

Answer 11

pulls skin inferiorly and anteriorly

wrinkles eyebrow

Question 12

action of levator palpebrae superioris

Answer 12

elevates upper eyelid

Question 13

action of orbicularis oculi

Answer 13

closes eye

Question 14

action of procerus

Answer 14

moves nose

changes position and shape of nostrils

Question 15

action of nasalis

Answer 15

compresses bridge
depresses tip of nose
elevates corners of nostrils

Question 16

action of temporoparietalis

Answer 16

tenses scalp

moves auricle of ear

Question 17

action of occipitofrontalis frontal belly

Answer 17

raises eyebrows

wrinkles forehead

Question 18

action of occipitofrontalis occipital belly

Answer 18

tenses and retracts scalp

Question 19

action of platysma

Answer 19

tenses skin of neck

depresses mandible