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MSK > Basic Lower Extremity Muscles and Connections > Flashcards

Basic Lower Extremity Muscles and Connections Flashcards

1
Q

Innervation and action of Gluteus Maximus M

A

Inferior Gluteal Nerve, extend thigh and assist in lateral rotation

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2
Q

Innervation and action of Gluteus Medius M

A

Superior gluteal nerve, abduct and medially rotate thigh

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3
Q

Innervation and action of Gluteus Minimus M

A

Superior Gluteal Nerve, abduct and medially rotate thig

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4
Q

Innervation and action of Tensor Fascia Lata M

A

Superior Gluteal Nerve, abduct, medially rotate and flex thigh, maintains extended thigh

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5
Q

Innervation and action of Piriformis M

A

Nerve to piriformis M, laterally rotate extended thigh, abduct flexed thigh, maintains extended thigh

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6
Q

Innvervation and action of Superior Gemellus M

A

Nerve to Obturator muscle, laterally rotate extended thigh, abduct flexed thigh, stabilize femoral head in the acetabalum

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7
Q

Innervation of Inferior Gemmuls M

A

Nerve to Quadratus femoris M, laterally rotate extended thigh, abduct flexed thigh, stabilize femoral head in the acetabalum

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8
Q

Innervation and action of Obturator Femoris M

A

Nerve to the Obturator Femoris, laterally rotate thigh, stabilize femoral head in the acetabalum,

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9
Q

Innervation of Obturator Externus

A

obturator nerve, laterally rotate thigh, stabilize femoral head in the acetabalum

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10
Q

Innervation of Obturator Internus M

A

nerve to obturator externus, laterally rotate extended thigh, stabilize femoral head in the acetabalum

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11
Q

innervation of psoas major M, action

A

lumbar plexus L1-L3, laterally flex the vertebral column, balances and flex the trunk and flex the thigh, when acting with illiacus

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12
Q

Innervation of Illiacus M, action

A

femoral nerve, flex the thigh and stabilize hip joint

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13
Q

Innervation of Sartorius M, action

A

femoral nerve, flex, abduct, and laterally rotate thigh, flex at knee

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14
Q

innervation of rectus femoris M and vastus muscles , action

A

femoral nerve, rectus femoris extends leg at knee, assists illiopsoas muscle in thigh flexion, vastus lateralis M and vastus intermedius M extends leg at knee

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15
Q

innervation of articularis genu M, action

A

femoral nerve, tightens capsule of knee during leg extension

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16
Q

muscles in medial compartment of thigh

A

pectineal m, adductor longus m, adductor brevis m, adductor magnus m, gracilis m,

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17
Q

posterior compartment muscles of the thigh

A

biceps femoris m, semitendinosus M, semimembranous M

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18
Q

innervation of biceps femoris M, action

A

long head: tibial division of sciatic division, short head: tibial division of sciatic nerve
both heads: flex and laterally rotate the leg when flexed
long head: extend thigh

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19
Q

innervation of semitendinosus M, action

A

tibial division of sciatic nerve, extend thigh, flex and medially rotate leg when flexed

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20
Q

innervation of semimembranosus M, action

A

tibial division of sciatic nerve, extend thigh, flex and medially rotate leg when flexed

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21
Q

innervation of tibialis anterior M, action

A

deep fibular n, dorsiflex the foot and ankle and invert foot

22
Q

innervation of extensor hallucis longus M, action

A

deep fibular n, extend hallux, dorsiflex the foot at the ankle

23
Q

innervation of extensor digitorum longus M, action

A

deep fibular n, extend digits 2 through 5 and dorsiflex foot

24
Q

innervation of fibularis tertius M, action

A

deep fibular n, dorsiflex foot, assist in eversion of foot

25
Q

innervation of fibularis longus M, action

A

superficial fibular n, evert foot, assist in plantarflexion

26
Q

innervation of fibularis brevis M, action

A

superficial fibular n, evert foot, assist in plantarflexion

27
Q

innervation of gastrocnemius M, action

A

tibial n, plantarflexion with extended thighm elevate heel, flex leg

28
Q

innervation of soleus M, action

A

tibial nerve, plantarflexion of the foot at the ankle

29
Q

innervation of plantaris M, action

A

tibial nerve, weakly assist in the plantarflexion and flexing in the knee

30
Q

innervation of popliteus M, action

A

tibial nerve, weakly flex the knee

31
Q

innervation of flexor hallucis longus M, action

A

tibial nerve, flex the hallux, weakly plantarflex the foot at the ankle

32
Q

innervation of flexor digitorum longus M, action

A

tibial nerve, flex digits 2 through 5, plantarflex the foot at the ankle

33
Q

innervation of tibialis posterior M, action

A

tibial nerve, plantarflexion and inversion

34
Q

innervation of extensor digitorum brevis M, action

A

tibial nerve, extend digits 2 through 5

35
Q

innervation of abductor hallucis M, action

A

medial plantar nerve, abduct and flex the hallux

36
Q

innervation of flexor digitorum brevis M, action

A

medial plantar nerve, flex digits 2 through 5, flex digits 2 through five

37
Q

innervation of abductor digiti minimi M, action

A

lateral plantar nerve, abduct and flex fifth digit

38
Q

innervation of quadratus plantae M, action

A

lateral plantar nerve, assist in flexing digits 2 through 5

39
Q

lumbrical muscles, action

A

1st medial plantar nerve, 2nd to fourth lateral plantar nerve
flex metatarsophalangeal joint, extend proximal joint, extend proximal and distal interphalangeal joints

40
Q

flexor hallucis brevis M, action

A

medial plantar nerve, flex first proximal phananx

41
Q

flexor digiti minimi brevis M, action

A

superficial lateral plantar nerve, flex proximal phalanx of 5th digit

42
Q

adductor hallucis M, action

A

deep lateral plantar nerve, adduct hallux

43
Q

dorsal interossei muscles, action

A

lateral plantar nerve, abduct digits 3 through 5, flex metatarsophalangeal joint

44
Q

plantar interossei muscles, action

A

lateral plantar nerve, adduct digits 3 through 5, flex metatarsophalangeal joint

45
Q

innervation and action of pectineus m

A

femoral nerve, adduct and flex thigh

46
Q

innervation and action of adductor longus m

A

anterior division of obturator nerve, adduct thigh

47
Q

innervation and action of adductor brevis m

A

anterior division of adductor brevis nerve, adduct thigh, assist in thigh flexion

48
Q

innervation and action of adductor magnus muscle

A

upper fibers: posterior division obturator nerve
lower fibers: tibial division sciatic nerve
whole muscle: adduct thigh
upper fibers: flex thigh
lower fibers: extend thigh

49
Q

innervation and action of gracilis muscle

A

anterior division of obturator nerve, adduct the thigh and assist in medial thigh rotation, flex the leg

50
Q

innervation and action of extensor hallucis brevis muscle

A

extend the hallux at the metatarsophalangeal joint, deep fibular nerve

MSK (9 decks)

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