Axial Skeleton Musculature

Question 1

frontalis

Answer 1

elevates eyebrows

Question 2

orbicularis oris

Answer 2

closes, protrudes lips

Question 3

orbicularis occuli

Answer 3

closes eyes, squints

Question 4

platysma

Answer 4

depress mouth corners

Question 5

buccinator

Answer 5

pull in cheek

Question 6

zygomaticus

Answer 6

elevation of mouth corners

Question 7

risorius

Answer 7

retraction of mouth corners

Question 8

masseter

Answer 8

elevation of mandible (close jaw)

Question 9

temporalis

Answer 9

elevation and retraction of mandible

Question 10

lateral pterygoid

Answer 10

protraction of mandible (pull forward)

Question 11

mylohyoid

Answer 11

elevation of hyoid and floor of mouth

Question 12

digastric

Answer 12

depression of mandible (open mouth)

Question 13

genioglossus

Answer 13

depression and protraction of tongue

Question 14

styloglossus

Answer 14

elevation and retraction of tongue

Question 15

palatoglossus

Answer 15

elevation of tongue

Question 16

hyoglossus

Answer 16

depression and retraction of tongue

Question 17

sternocleidomastoid

Answer 17

flexion of head, lateral rotation

Question 18

splenius capitus

Answer 18

extension of head

Question 19

scalenes (anterior and posterior)

Answer 19

flexion of neck, slight rotation

Question 20

spinalis

Answer 20

elevation, lateral flexion of cervical spine

Question 21

psoas major (iliopsoas)

Answer 21

flexion of trunk

Question 22

rectus abdominis

Answer 22

flexion, rotation of lumbar spine

Question 23

external oblique

Answer 23

flexion, lateral rotation of trunk

Question 24

internal oblique

Answer 24

flexion, lateral rotation of trunk

Question 25

quadratus lumborum

Answer 25

lateral flexion of vertebral column

Question 26

erector spinae group

Answer 26

elevation and lateral flexion