Actions

Question 1

Frontalis Belly, Epicranius

Answer 1

pulls scalp forward; wrinkles forehead and raises eyebrows

Question 2

Occipitalis Belly, Epicranius

Answer 2

Pulls scalp backward

Question 3

Procerus

Answer 3

Depresses eyebrows medially

Question 4

Compressor Naris

Answer 4

Compress cartilage at bridge of nose

Question 5

Dilatator Naris

Answer 5

Widens, dilates nostrils and anterior nasal aperture

Question 6

Depressor Septi

Answer 6

Widens nostril

Question 7

Corrugator Supercilii

Answer 7

Draws eyebrows medial and down (forms vertical furrow between eyebrows)

Question 8

Levator Labii Superioris

Answer 8

raises and everts upper lip

Question 9

Levator Labii Superioris Alaeque Nasi

Answer 9

Raises and everts upper lip; dilates nostril

Question 10

Zygomaticus Major

Answer 10

Draws angle of mouth up and out

Question 11

Zygomaticus Minor

Answer 11

Raises upper lip; produces nasolabial groove

Question 12

Levator Anguli Oris

Answer 12

Raises angle of mouth; produces nasolabial groove

Question 13

Orbicularis Oris

Answer 13

Close mouth; purse and protrude lips

Question 14

Buccinator

Answer 14

Compress cheeks against teeth

Question 15

Risorius

Answer 15

Draws back angle of mouth

Question 16

Mentalis

Answer 16

Raises and protrudes lower lip

Question 17

Depressor Labii Inferioris

Answer 17

Draws lower lip down

Question 18

Depressor Anguli Oris

Answer 18

Draws corner of mouth down and out

Question 19

Levator Palpebra Superioris

Answer 19

Elevates upper eyelid

Question 20

Superior Rectus

Answer 20

Elevate and adduct the cornea; intorsion

Question 21

Inferior Rectus

Answer 21

Depress and adduct the cornea; extorsion

Question 22

Medial Rectus

Answer 22

ADDucts cornea

Question 23

Lateral Rectus

Answer 23

ABducts cornea

Question 24

Superior Oblique

Answer 24

Depress and abduct the cornea; intorsion

Question 25

Inferior Oblique

Answer 25

Elevate and abduct the cornea; extorsion

Question 26

Temporalis

Answer 26

Elevate and retract mandible

Question 27

Masseter

Answer 27

Elevate and protract mandible

Question 28

Medial Pterygoid

Answer 28

Elevate and protract mandible; assists in gliding or rotatory movement

Question 29

Lateral Pterygoid

Answer 29

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

Question 30

Splenius Capitis

Answer 30

Laterally flex head and rotate face to side; bilaterally extend head

Question 31

Splenius Cervicis

Answer 31

Laterally flex and rotate neck; bilaterally extend neck

Question 32

Iliocostalis Lumborum

Answer 32

Extension, lateral flexion, rotation of L spine; lateral movement of pelvis

Question 33

Iliocostalis Thoracis

Answer 33

Extension, lateral flexion T spine

Question 34

Iliocostalis Cervicis

Answer 34

Extension, Lateral flexion, rotation lower C spine

Question 35

Longissimus Thoracis

Answer 35

Lateral flexion T spine and ribs ( L spine inadvertently); bilaterally act in extension of T and L spine, hold T and L spine erect (increase L lordosis); lateral movement of pelvis

Question 36

Longissimus Cervicis

Answer 36

Lateral flexion of neck; bilaterally extend neck

Question 37

Longissimus Capitis

Answer 37

Rotate and laterally flex head; bilaterally extend head

Question 38

Spinalis Thoracis

Answer 38

Extend T spine

Question 39

Spinalis Cervicis

Answer 39

Lateral flexion and rotation of C spine; bilaterally extend neck

Question 40

Spinalis Capitis

Answer 40

Lateral flexion and rotation of head; bilaterally extend head

Question 41

Semispinalis Thoracis

Answer 41

Extension, rotation, and lateral flexion of upper T and lower C spine; bilaterally extend T spine

Question 42

Semispinalis Cervicis

Answer 42

Extension, rotation, and lateral flexion of C spine; bilaterally extend neck

Question 43

Semispinalis Capitis

Answer 43

Turns face to side; bilaterally extends head (Neck inadvertently)

Question 44

Rectus Capitis Posterior Major

Answer 44

Turns face to side; bilaterally extends head

Question 45

Rectus Capitis Posterior Minor

Answer 45

Extends head

Question 46

Obliquus Capitis Superior

Answer 46

Lateral flexion of head; bilaterally extends head

Question 47

Obliquus Capitis Inferior

Answer 47

Turns face to side

Question 48

Quadratus Lumborum

Answer 48

Steadies origin of diaphragm; when pelvis is fixed, it will laterally flex the L spine; bilaterally extends the L spine; stabilizes and depresses the 12th rib

Question 49

Serratus Posterior Superior

Answer 49

Elevate upper 5 ribs in inspiration

Question 50

Serratus Posterior Inferior

Answer 50

Draws lower 4 ribs down and back; forced inspiration

Question 51

Longus Colli

Answer 51

Flexion and extension in neck; rotation to the contralateral side

Question 52

Longus Capitis | Rectus Capitis Anterior

Answer 52

Flex the head

Question 53

Rectus Capitis Lateralis

Answer 53

Laterally flex the head to the ipsilateral side