lower extremity muscle chart

Question 1

Psoas Major action and Nerve innervation

Answer 1

flex hip
ER hip
flex lumbar spine
ipsilateral flex spine

L1-L3 direct branches

Question 2

iliacus action and innervation

Answer 2

flex hip
ER hip

femoral nerve

Question 3

sartorius action and innervation

Answer 3

flex hip
ER hip
abduction hip
flex knee
IR tibia 

femoral nerve

Question 4

upper glute max action and innervation

Answer 4

extend, ER, and abduct hip

inferior gluteal nerve

Question 5

lower glute max action and innervation

Answer 5

extend, ER and ADD hip

inferior gluteal nerve

Question 6

glute med action and innervation

Answer 6

abduction hip
anterior - flex and IR hip
posterior - ext and ER hip

superior gluteal nerve

Question 7

glute min action and innervation

Answer 7

abduction hip
anterior - flex and IR hip
posterior - ext and ER hip

superior gluteal nerve

Question 8

TFL action and nerve innervation

Answer 8

tenses fascia latae
abduct, flex, IR hip

superior gluteal nerve

Question 9

piriformis action and nerve innervation

Answer 9

ER, ABD, Ext hip

L5-S2 direct branches

Question 10

gemellus superior action and innervation

Answer 10

ER hip
adduct hip < 30 deg abd
abd hip > 30 deg abd
extend hip

L5-s1 direct branches

Question 11

obturator internis action and nerve innervation

Answer 11

ER hip
add < 30 abd
abd > 30 abd
ext hip

L5-s1 direct branches

Question 12

gemellus inferior

Answer 12

ER hip
add < 30 deg abd
abd > 30 deg abd
ext hip

L5-s1 direct branches

Question 13

obturator externis

Answer 13

ER hip
add hip

obturator nerve

Question 14

quadratus femoris

Answer 14

ER hip
ADD hip

L5-S1 direct branches

Question 15

pectineus action and innervation

Answer 15

adduct, IR, Flex hip

femoral nerve/ obturator nerve

Question 16

adductor longus action and innervation

Answer 16

adduct hip, flex hip , IR

obturator nerve

Question 17

adductor brevis

Answer 17

adduct hip, flex hip, IR hip

obturator nerve

Question 18

adductor magnus

Answer 18

adduct hip

ant: IR, flex hip
posterior: ER, ext hip

ant - obturator nerve
post - tibial nerve

Question 19

gracilis

Answer 19

adduct, flex hip
flex knee
IR tibia

obturator nerve

Question 20

rectus femoris

Answer 20

flex hip , ext knee

femoral nerve

Question 21

vastus medialis, vastus lateralis, vastus intermedius (quads)

Answer 21

ext knee

tibial nerve

Question 22

biceps femoris long head

Answer 22

extend hip
ER tibia, flex knee

tibial nerve

Question 23

biceps femoris short head

Answer 23

flex knee, ER tibia

common fibular/peroneal nerve

Question 24

semimembranosis and semitendinosus

Answer 24

ext hip
flex knee, IR tibia

tibial nerve

Question 25

poplitius

Answer 25

flex knee IR tibia ER femur tibial nerve

Question 26

tibialis anterior

Answer 26

DF ankle Invert STJ deep peroneal nerve

Question 27

extensor digitorum longus

Answer 27

DF ankle Evert STJ extend MTP 2-5 deep peroneal nerve

Question 28

extensor hallucis longus

Answer 28

DF anke Evert/invert STJ Extend MTP/IP 1 deep peroneal nerve

Question 29

peroneus longus

Answer 29

PF ankle Evert STJ superficial peroneal nerve

Question 30

peroneus brevis

Answer 30

evert STJ PF ankle superficial peroneal nerve

Question 31

peroneus tertius

Answer 31

DF ankle evert STJ deep peroneal nerve

Question 32

soleus

Answer 32

PF ankle invert STJ tibial nerve

Question 33

gastrocnemius

Answer 33

PF ankle Invert STJ flex knee tibial nerve

Question 34

plantaris

Answer 34

PF ankle invert STJ flex knee tibial nerve

Question 35

posterior tibialis

Answer 35

PF ankle invert STJ tibial nerve

Question 36

flexor digitorum longus

Answer 36

PF ankle invert STJ flex mtp flex IP 2-5 tibial nerve

Question 37

flexor hallucis longus

Answer 37

flex mtp 1 flex IP 1 PF ankle Invert STJ tibial nerve

Question 38

extensor digitorum brevis

Answer 38

ext MTP 2-4 ext PIP 2-4 deep peroneal nerve

Question 39

extensor hallucis brevis

Answer 39

extend MTP 1 deep peroneal nerve

Question 40

abductor hallucis

Answer 40

abduct MTP 1 medial plantar nerve

Question 41

flexor hallucis brevis medial and lateral heads

Answer 41

flex MTP 1 med: medial plantar nerve lat: lateral plantar nerve

Question 42

adductor hallucis

Answer 42

adduct MTP 1 flex MTP 1 support transverse arch lateral plantar arch

Question 43

abductor digiti minimi

Answer 43

abduct MTP 5 flex MTP 5 lateral plantar nerve

Question 44

flexor digiti minimi

Answer 44

flex MTP 5 lateral plantar nerve