Exam 3 Muscle Actions - Cumulative

Question 1

psoas major action

Answer 1

hip/trunk flexor
lateral trunk flexion
lateral thigh rotation

Question 2

psoas minor action

Answer 2

hip/trunk flexor

Question 3

iliacus action

Answer 3

hip/trunk flexor

Question 4

quadratus lumborum action

Answer 4

trunk extension
lateral flexion of torso

Question 5

gluteus maximus action

Answer 5

standing from seated
hip/thigh extension
lateral thigh rotation

Question 6

gluteus medius action

Answer 6

abduction of thigh
hip stabilization
medial thigh rotation

Question 7

gluteus minimus action

Answer 7

abduction of thigh
hip stabilization
medial thigh rotation

Question 8

piriformis actions

Answer 8

abduction of thigh
hip stabilization
lateral thigh rotation

Question 9

superior gemellus action

Answer 9

abduction of thigh
hip stabilization
lateral thigh rotation

Question 10

inferior gemellus actions

Answer 10

abduction of thigh
hip stabilization
lateral thigh rotation

Question 11

obturator internus actions

Answer 11

abduction of thigh
hip stabilization
lateral thigh rotation

Question 12

quadratus femoris actions

Answer 12

hip stabilization
lateral thigh rotation

Question 13

rectus femoris actions

Answer 13

flexion of thigh
extension of knee

Question 14

vastus lateralis action

Answer 14

extension of knee

Question 15

vastus intermedius action

Answer 15

extension of knee

Question 16

vastus medialus action

Answer 16

extension of knee

Question 17

sartorius actions

Answer 17

flexion of hip and knee
abduct thigh
lateral thigh rotation

Question 18

pectineus action

Answer 18

adduction of thigh
flexion of thigh (weak)
medial rotation of thigh

Question 19

gracilis action

Answer 19

adduction of thigh

Question 20

adductor longus action

Answer 20

adduction of thigh

Question 21

adductor brevis action

Answer 21

adduction of thigh

Question 22

adductor magnus (adductor) action

Answer 22

adduction of thigh

Question 23

**adductor magnus (hamstring) action

Answer 23

extension of thigh

Question 24

semimembranosus actions

Answer 24

flexion of knee
extension of thigh

Question 25

semitendinosus actions

Answer 25

flexion of knee extension of thigh

Question 26

biceps femoris long head actions

Answer 26

flexion of knee extension of thigh

Question 27

biceps femoris short head action

Answer 27

flexion of knee

Question 28

tibialis anterior actions

Answer 28

dorsiflexion inversion

Question 29

extensor hallucis longus actions

Answer 29

dorsiflexion extension of hallux

Question 30

extensor digitorum longus actions

Answer 30

dorsiflexion extension of digits 2-5

Question 31

fibularis tertius action

Answer 31

eversion

Question 32

fibularis longus actions

Answer 32

eversion plantar flexion

Question 33

fibularis brevis actions

Answer 33

eversion plantar flexion

Question 34

gastrocnemius action

Answer 34

plantar flexion

Question 35

soleus action

Answer 35

plantar flexion

Question 36

plantaris actions

Answer 36

proprioception plantar flexion (weak)

Question 37

popliteus actions

Answer 37

flexion of knee (weak) unlocks knee

Question 38

flexor digitorum longus actions

Answer 38

flex digits 2-5 plantar flexion

Question 39

tibialis posterior actions

Answer 39

inversion plantar flexion

Question 40

flexor hallucis longus actions

Answer 40

flex hallux plantar flexion

Question 41

extensor hallucis brevis action

Answer 41

extends hallux towards tibia

Question 42

extensor digitorum brevis action

Answer 42

extends digits 2-5 towards tibia

Question 43

plantar foot common action

Answer 43

plantar flexion (unless it has abductor/adductor in the name)

Question 44

puborectalis action

Answer 44

supports viscera maintains fecal continence by pulling on rectum

Question 45

pubococcygeus action

Answer 45

supports viscera

Question 46

iliococcygeus action

Answer 46

supports viscera

Question 47

coccygeus (NOT levator ani) action

Answer 47

supports viscera