Actions 2

Question 1

frontalis belly, epicranius

Answer 1

pulls scalp forward; wrinkles forehead & raises eyebrows

Question 2

occipitalis belly, epicranius

Answer 2

pulls scalp backward

Question 3

procerus

Answer 3

depress eyebrows medially

Question 4

compressor naris

Answer 4

compress cartilage at bridge of nose

Question 5

dilatator naris

Answer 5

widens, dilates nostrils & anterior nasal aperture

Question 6

corrugator supercilii

Answer 6

draws eyebrow medial & down (forms vertical furrow between eyebrows)

Question 7

levator labii superioris

Answer 7

raises & everts upper lip

Question 8

levator labii superioris alaeque nasi

Answer 8

raises & everts upper lip; dilates nostril

Question 9

zygomaticus minor

Answer 9

raises upper lip; produces nasolabial groove

Question 10

zygomaticus major

Answer 10

draws angle of mouth up and out

Question 11

levator anguli oris

Answer 11

raises angle of mouth; produces nasolabial groove

Question 12

orbicularis oris

Answer 12

close mouth; purse & protrude lips

Question 13

buccinator

Answer 13

compress cheeks against teeth

Question 14

risorius

Answer 14

draws back angle of mouth

Question 15

mentalis

Answer 15

raises & protrudes lower lip

Question 16

depressor labii inferioris

Answer 16

draws lower lip down

Question 17

depressor anguli oris

Answer 17

draws corner of mouth down & out

Question 18

levator palpebra superioris

Answer 18

elevates upper eyelid

Question 19

superior rectus

Answer 19

elevate & adduct the cornea; intorsion

Question 20

inferior rectus

Answer 20

depress & adduct the cornea; extorsion

Question 21

medial rectus

Answer 21

adducts cornea

Question 22

lateral rectus

Answer 22

abducts cornea

Question 23

superior oblique

Answer 23

depress & abduct the cornea; intorsion

Question 24

inferior oblique

Answer 24

elevate & abduct the cornea; extorsion

Question 25

temporalis

Answer 25

elevate & retract mandible

Question 26

masseter

Answer 26

elevate & protract mandible

Question 27

medial pterygoid

Answer 27

elevate & protract mandible; assists in gliding or rotatory movement

Question 28

lateral pterygoid

Answer 28

protracts mandible; pulls disc forward; depress chin & assist in gliding or rotatory movement