facial muscles: expressions

Question 1

inferior rectus

Answer 1

downward rotation of the eye-look down

Question 2

superior rectus

Answer 2

upward rotation of the eye-lookup`

Question 3

medial rectus

Answer 3

medial rotation of eye-cross eyed

Question 4

lateral rectus

Answer 4

lateral rotation of the eye-look outward

Question 5

inferior oblique

Answer 5

adduction and elevation of eye-look up and in

Question 6

superior oblique

Answer 6

abduction and depression of eye- look down and out

Question 7

buccinator

Answer 7

depress cheeks-purse your lips

Question 8

corrugator supercilii

Answer 8

draw eyebrows medially and inferiorly-angry eyebrows

Question 9

depressor anguli oris

Answer 9

draws the angles of the mouth downward-frowning

Question 10

depressor labii inferioris

Answer 10

lowers the mouth-pull lips down

Question 11

digastric

Answer 11

hyoid bone fixed: depress mandible-open mouth

mandible fixed:elevate the hyoid bone and retract the mandible

Question 12

gleniohyoid

Answer 12

opens mouth

Question 13

infrahyoid

Answer 13

depress the hyoid bone and thyroid cartilage

Question 14

levator anguli oris

Answer 14

draws the angles of the mouth upward-smile

Question 15

levator labii superioris

Answer 15

elevate and protrude the upper lip

Question 16

masseter

Answer 16

elevate the mandible-aids in biting

Question 17

mentalis

Answer 17

elevates the skin of the chin

Question 18

mylohyoid

Answer 18

opens mouth

Question 19

orbicularis occuli

Answer 19

closing eyelid-squinting

Question 20

orbicularis oris

Answer 20

pucker the lips

Question 21

occipito-frontalis

Answer 21

frontalis: raise the eyebrows and wrinkle the forehead
occipitalis: anchor and retract the galea apomeurotica posteriorly

Question 22

platysma

Answer 22

depress the mandible; tighten fascia of the neck; draw down corners of the mouth

Question 23

procerus

Answer 23

wrinkles the nose

Question 24

pterygoid medial

Answer 24

elevate and protract the mandible

Question 25

pterygoid lateral

Answer 25

protract the mandible

Question 26

risorius

Answer 26

retract the corners of the mouth laterally forming an insincere smile

Question 27

suprahyoids

Answer 27

elevate hyoid and tongue; depress mandible

Question 28

temporalis

Answer 28

elevate the mandible; aids in biting; retracts the mandible

Question 29

zygomaticus

Answer 29

elevates and protracts the upper lip-smiling

Question 30

glenioglossus

Answer 30

protracts the tongue

Question 31

styloglossus

Answer 31

elevates and retracts the tongue

Question 32

hypoglussus

Answer 32

depresses and retracts the tongue

Question 33

palatoglossus

Answer 33

elevates posterior part of the tongue

Question 34

levator veli palatini

Answer 34

elevates soft palate when swallowing

Question 35

tensor veli palatini

Answer 35

tenses up soft palate and opens auditory tube when swallowing or yawning

Question 36

superior contstrictor

Answer 36

constricts the pharynx in sequence to forces the bolus into the esophagus (superior is innermost)

Question 37

middle constrictor

Answer 37

constricts the pharynx in sequence to force the bolus into the esophagus

Question 38

inferior constrictor

Answer 38

constricts the pharynx in sequence to force the blus into the esophagus

Question 39

palatopharyngeus

Answer 39

elevates the pharynx and the larynx

Question 40

salpingopharyngeus

Answer 40

elevates pharynx and larynx

Question 41

stylopharyngeus

Answer 41

elevates pharynx and larynx