Lower Limb Muscles, Nerves, & Actions Flashcards Preview

Anatomy > Lower Limb Muscles, Nerves, & Actions > Flashcards

Flashcards in Lower Limb Muscles, Nerves, & Actions Deck (51):
1

gluteus maximus

superficial layer
inferior gluteal nerve
extend, laterally rotate thigh

2

gluteus medius

middle layer
superior gluteal nerve
abduct, medially rotate thigh

3

gluteus minimus

middle layer
superior gluteal nerve
abduct, medially rotate thigh

4

tensor fascia latae

middle layer
superior gluteal nerve
abduct, medially rotate thigh

5

piriformis

deep layer
ventral rami S1-S2
laterally rotate thigh

6

superior gemellus

deep layer
nerve to obturator internus
laterally rotate thigh

7

obturator internus

deep layer
nerve to obturator internus
laterally rotate thigh

8

inferior gemellus

deep layer
nerve to quadratus femoris
laterally rotate thigh

9

quadratus femoris

deep later
nerve to quadratus femoris
laterally rotate thigh

10

illiopsoas

anterior compartment
femoral and lumbar nerve
flex thigh at hip

11

sartorius

anterior compartment
femoral nerve
flex, abduct, laterally rotate hip; flex knee; crossing legs one over the other

12

rectus femoris

anterior compartment
femoral nerve
flex hip, extend leg at knee

13

vastus lateralis

anterior compartment
femoral nerve
extend leg at knee

14

vastus intermedius

anterior compartment
femoral nerve
extend leg at knee

15

vastus medialis

anterior compartment
femoral nerve
extend leg at knee

16

pectineus

anterior compartment
femoral and obturator nerve
adduct thigh at hip

17

gracilis

medial compartment
obturator nerve
adduct thigh at hip, flex and medially rotate leg at knee

18

obturator externus

medial compartment
obturator nerve
laterally rotate thigh

19

adductor longus

medial compartment
obturator nerve
adduct thigh at hip

20

adductor brevis

medial compartment
obturator nerve
adduct thigh at hip

21

adductor magnus

medial compartment
obturator and tibial nerve
adduct and extend thigh at hip

22

semimembranosus

posterior compartment
tibial nerve
extend thigh, flex and medially rotate leg

23

semitendinosus

posterior compartment
tibial nerve

24

biceps femoris (long head)

posterior compartment
tibial nerve
extend thigh, flex and laterally rotate leg

25

biceps femoris (short head)

posterior compartment
common fibular nerve
flex and laterally rotate leg

26

tibilias anterior

anterior compartment
deep fibular nerve
dorsiflex ankle, invert foot

27

extensor hallucis longus

anterior compartment
deep fibular nerve
dorsiflex ankle, extend great toe

28

extensor digitorium longus

anterior compartment
deep fibular nerve
dorsiflex ankle, extend digit 2-5

29

fibularis tertius

anterior compartment
deep fibular nerve
dorsiflex ankle, evert foot

30

fibularis longus

lateral compartment
superifical fibular nerve
evert foot, weak plantar flexor at ankle

31

fibularis brevis

lateral compartment
superficial fibular nerve
evert foot, weak plantar flexor at ankle

32

gastrocnemius

posterior compartment
tibial nerve
flex at knee, plantar flex foot at ankle

33

soleus

posterior compartment
tibial nerve
plantarflex foot at ankle, raise heel during walking

34

plantaris

posterior compartment
tibial nerve
weakly plantarflex foot at ankle

35

popliteus

posterior compartment
tibial nerve
weakly flex knee, unlock knee, laterally rotate femur on fixed tibia or medially rotate tibia of unplanted limb

36

flexor hallucis longus

posterior compartment
tibial nerve
plantarflex foot at ankle, flex great toe

37

flexor digitorium longus

posterior compartment
tibial nerve
plantarflex at ankle, flex digits 2-5, support longitudinal arch

38

tibialis posterior

posterior compartment
tibial nerve
plantarflex foot at ankle, invert foot

39

extensor digitorum brevis

dorsal compartment
deep fibular nerve
extend digits 2-5

40

extensor hallucis brevis

dorsal compartment
deep fibular nerve
extends great toe

41

flexor digitorium brevis

plantar compartment layer 1
medial plantar nerve
flex digits 2-5

42

abductor hallucis

plantar compartment layer 1
medial plantar nerve
abduct and flex great toe

43

abductor digiti minimi

plantar compartment layer 1
lateral plantar nerve
abduct and flex digit 5

44

quadratus plantae

plantar compartment layer 2
lateral plantar nerve
assist in flexing digits 2-5

45

lumbrical 1

plantar compartment layer 2
medial plantar nerve
flex PIP and extend DIP of digit 2

46

lumbrical 2-4

plantar compartment layer 2
lateral plantar nerve
flex PIP and extend DIP of digits 3-5

47

flexor hallucis brevis

plantar compartment layer 3
medial plantar nerve
flex PIP and extend DIP of digit 2

48

adductor hallucis

plantar compartment layer 3
lateral plantar nerve
adduct great toe, support transverse arch

49

flexor digiti minimi brevis

plantar compartment layer 3
lateral plantar nerve
flex digit 5

50

plantar interossei (3)

plantar compartment layer 4
lateral plantar nerve
adduct digits 2-4, flex MP joints

51

dorsal interossei (4)

plantar compartment layer 4
lateral plantar nerve
abduct digits 2-4, flex MP joints