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CLINICALS > Leg, Ankle, and Foot Muscle Actions + Innervations > Flashcards

Leg, Ankle, and Foot Muscle Actions + Innervations Flashcards

1
Q

tibialis anterior innervation

A

deep fibular nerve

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2
Q

tibialis anterior action

A

dorsiflexion
inversion

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3
Q

fibularis tertius innervation

A

deep fibular nerve

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4
Q

fibularis tertius action

A

dorsiflexion
eversion

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5
Q

extensor digitorum longus innervation

A

deep fibular nerve

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6
Q

extensor digitorum longus action

A

extension of digits 2-5
dorsiflexion

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7
Q

extensor hallucis longus innervation

A

deep fibular nerve

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8
Q

extensor hallucis lonus action

A

big toe extension (hallux)
dorsiflexion

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9
Q

fibularis longus innervation

A

superficial fibular nerve

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10
Q

fibularis longus action

A

weak plantarflexion
eversion

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11
Q

fibularis brevis innervation

A

superficial fibular nerve

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12
Q

fibularis brevis action

A

weak plantarflexion
eversion

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13
Q

plantaris innervation

A

tibial nerve

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14
Q

plantaris action

A

weak plantarflexion
proprioception

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15
Q

soleus innervation

A

tibial nerve

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16
Q

soleus action

A

plantarflexion

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17
Q

gastrocnemius innervation (medial + lateral heads)

A

tibial nerve

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18
Q

gastrocnemius action (medial + lateral heads)

A

plantarflexion
leg flexion at knee

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19
Q

muscles that make up the triceps surae

A

soleus and gastrocnemius (medial + lateral heads)

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20
Q

popliteus innervation

A

tibial nerve

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21
Q

popliteus action

A

stabilizes knee joint (resists external rotation of tibia on femur)
unlocks knee joint (externally rotates femur on fixed tibia)

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22
Q

tibialis posterior innervation

A

tibial nerve

23
Q

tibialis posterior action

A

plantarflexion
inversion
maintain medial longitudinal arch

24
Q

flexor hallucis longus innervation

A

tibial nerve

25
Q

flexor hallucis longus action

A

big toe flexion (hallux)
weak plantarflexion
maintain medial longitudinal arch

26
Q

flexor digitorum longus innervation

A

tibial nerve

27
Q

flexor digitorum longus action

A

digit 2-5 flexion
plantarflexion
support medial longitudinal arch of foot

28
Q

extensor hallucis brevis innervation

A

deep fibular nerve

29
Q

extensor hallucis brevis action

A

big toe extension (hallux)

30
Q

extensor digitorum brevis innervation

A

deep fibular nerve

31
Q

extensor digitorum brevis action

A

digit 2-4 extension

32
Q

abductor digiti minimi innervation

A

lateral plantar nerve

33
Q

abductor digiti minimi action

A

digit 5 flexion + abduction

34
Q

flexor digitorum brevis innervation

A

medial plantar nerve

35
Q

flexor digitorum brevis action

A

digit 2-5 flexion

36
Q

abductor hallucis innervation

A

medial plantar nerve

37
Q

abductor hallucis action

A

big toe flexion + abduction

38
Q

lumbrical 1 innervation

A

medial plantar nerve

39
Q

lumbrical 1 action

A

MTP joint flexion
proximal + distal IP joint extension

40
Q

lumbricals 2-4 innervation

A

lateral plantar nerve

41
Q

lumbricals 2-4 action

A

MTP joint flexion
proximal + distal IP joint extension

42
Q

quadratus plantae innervation

A

lateral plantar nerve

43
Q

quadratus plantae action

A

assists flexor digitorum to flex digits 2-5

44
Q

adductor hallucis innervation (transverse + oblique heads) DEEP BRANCH

A

lateral plantar nerve

45
Q

adductor hallucis action (transverse + oblique heads) DEEP BRANCH

A

digit 1 adduction

46
Q

flexor hallucis brevis innervation

A

medial plantar nerve

47
Q

flexor hallucis brevis action

A

flexes digit 1 MTP joint

48
Q

flexor digiti minimi brevis innervation SUPERFICIAL BRANCH

A

lateral plantar nerve

49
Q

flexor digiti minimi brevis action SUPERFICIAL BRANCH

A

flexes digit 5 MTP joint

50
Q

dorsal interossei innervation

A

lateral plantar nerve

51
Q

dorsal interossei action

A

digit 2-4 MTP joint flexion
digit 2-4 adduction
digit 2-4 IP extension
DAB

52
Q

palmar interossei innervation

A

lateral plantar nerve

53
Q

palmar interossei action

A

digit 3-5 MTP flexion
digit 3-5 adduction
digit 3-5 IP extension
PAD

CLINICALS (17 decks)

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