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hk > leg > Flashcards

leg Flashcards

1
Q

what nerve divides into 4 branches that innervate the different parts of leg?

A

Sciatic nerve

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2
Q

what are the 4 branches of the sciatic nerve?

A
  1. tibial nerve
  2. common fibular nerve
  3. deep branch of common fibular nerve
  4. superficial branch of common fibular nerve
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3
Q

what compartment of the leg does tibial nerve innervate?

A

posterior

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4
Q

what compartment of the leg does superficial branch of CFN innervate?

A

lateral

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5
Q

what compartment of the leg does deep branch of CFN innervate?

A

anterior

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6
Q

the common fibular nerve branches to supply what regions of the leg?

A

lateral and anterior

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7
Q

what fossa does the tibial nerve travel throug?

A

popliteal fossa

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8
Q

what muscle does CFN follow to get to lateral and anterior compartments of leg

A

biceps femoris

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9
Q

the popliteal artery divides into what 3 branches?

A
  1. anterior tibial artery
  2. posterior tibial artery
  3. fibular artery
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10
Q

what artery and vein travel together in the posterior compartment of the leg

A

posterior tibial artery and tibial nerve

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11
Q

what artery and vein travel together in the anterior compartment of the leg

A

anterior tibial artery and deep branch of CFN

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12
Q

(T/F) the superficial branch of the CFN travels with the anterior tibial A

A

FALSE. it has no travelling partners

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13
Q

what artery and nerve have no travelling partners

A

superficial branch of CFN and fibular artery

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14
Q

where does the fibular artery supply

A

lateral compartment of leg and posterior compartment of leg

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15
Q

what foramen does the sciatic nerve travel through?

A

greater sciatic nerve
(with periformis)

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16
Q

what 2 things travel through greater sciatic foramen

A

sciatic nerve and periformis

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17
Q

what are the 3 superficial muscles of the posterior compartment of leg

A

gastrocnemius
soleus
plantaris

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18
Q

what are the deep muscles of posterior leg

A

popliteus
tibialis posterior
flex digitorum longus
flexor hallicus longus

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19
Q

gastrocnemius origin

A

lateral condyle of femur (superior to medial condyle of femur)(popliteal surface)

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20
Q

gastrocnemius insertion

A

posterior aspect of calcaneus via calcaneal tendon

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21
Q

gastrocnemius action

A
  1. flexion at knee
  2. plantarflexion at ankle when knee is extended
  3. raises heel when walking
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22
Q

gastrocnemius innervation

A

tibial nerve

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23
Q

gastrocnemius artery

A

posterior tibial artery

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24
Q

soleus origin

A

posterior fibula (superior 1/4)
posterior tibia - soleal line

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25
Q

soleus insertion

A

posterior aspect of calcaneus via calcaneal tendon

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26
Q

soleus action

A
  1. plantarflexion at ankle
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27
Q

soleus innervation

A

tibial nerve

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28
Q

soleus artery

A

posterior tibial artery

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29
Q

plantaris origin

A

lateral condyle of femur

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30
Q

plantaris insertion

A

posterior aspect of calcaneus via calcaneal tendon

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31
Q

plantaris action

A
  1. weak plantarflexion at ankle
  2. proprioception
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32
Q

plantaris innervation

A

tibial nerve

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33
Q

plantaris artery

A

posterior tibial artery

34
Q

popliteus origin

A

lateral surface of lateral condyle of femur

35
Q

popliteus insertion

A

posterior surface of tibia - region above soleal line

36
Q

popliteus action

A
  1. week knee flexion
  2. unlocks knee: rotate femur laterally on fixed tibia. rotate tibia on unplanted limb
37
Q

popliteus innervation

A

tibial nerve

38
Q

popliteus artery

A

posterior tibial artery

39
Q

tibialis posterior origin

A

posterior tibia and fibula
interosseous membrane

40
Q

tibialis posterior insertion

A

navicular
cuneiform (MIL)
cuboid
base of metatarsals 2-4

41
Q

tibialis posterior action

A
  1. inversion of foot (tilting sole towards midline)
  2. plantarflexion at ankle
42
Q

tibialis posterior innervation

A

tibial nerve

43
Q

tibialis posterior artery

A

posterior tibial artery

44
Q

flexor hallucis longus origin

A

posterior fibula
interosseous membrane

45
Q

flexor hallucis longus insertion

A

base of distal phalange 1 (big toe)

46
Q

flexor hallucis longus action

A
  1. plantarflexion at ankle
  2. flexion at joints proximal to insertion
47
Q

flexor hallucis longus innervation

A

tibial nerve

48
Q

flexor hallucis longus artery

A

posterior tibial artery

49
Q

flexor digitorum longus origin

A

posterior tibia
interosseous membrane

50
Q

flexor digitorum longus insertion

A

base of distal phalanges (2-5)

51
Q

flexor digitorum longus action

A
  1. plantarflexion at ankle
  2. flexion at joints proximal to insertion
52
Q

flexor digitorum longus innervation

A

tibial nerve

53
Q

flexor digitorum longus artery

A

posterior tibial artery

54
Q

what is the interosseus membrane?

A

ligament between fibula and tibia

55
Q

what does tibialis posterior do that FDH & FHL dont?

A

inversion of foot

56
Q

how many muscles in anterior compartment of leg? what are they?

A
  2. tibialis anterior
  3. extensor hallicus longus
  4. extensor digitorum longus
57
Q

tibialis anterior origin

A

lateral surface of tibia
interosseus membrane

58
Q

tibialis anterior insertion

A

1st metatarsal
medial cuneiform

59
Q

tibialis anterior action

A
  1. inversion of foot
  2. dorsiflexion at ankle
60
Q

tibialis anterior innervation

A

deep branch of CFN

61
Q

tibialis anterior artery

A

anterior tibial artery

62
Q

extensor hallicis longus origin

A

anterior fibula
interosseus membrane

63
Q

extensor hallicis longus insertion

A

distal phylange digit 1 (big toe)

64
Q

extensor hallicis longus action

A
  1. dorsiflexion at ankle
  2. extension of big toe (extension of joints proximal to insertion)
65
Q

extensor hallicis longus innervation

A

deep branch CFN

66
Q

extensor hallicis longus artery

A

anterior tibial artery

67
Q

extensor digitorum longus origin

A

anterior fibula
interosseus membrane

68
Q

extensor digitorum longus insertion

A

middle & distal phalanges of 2-5

69
Q

extensor digitorum longus action

A
  1. dorsiflexion at ankle
  2. extension of digits 2-5 (extension of joints proximal to insertion )
70
Q

extensor digitorum longus innervation

A

deep branch of CFN

71
Q

extensor digitorum longus artery

A

anterior tibial artery

72
Q

what 2 muscles on lateral compartment of leg?

A

fibularis longus
fibularis brevis

73
Q

fibularis longus origin

A

lateral aspect of fibula (superior to attachment of brevis)

74
Q

fibularis longus insertion

A

medial cuneiform
base of 1st metatarsal

75
Q

fibularis longus action

A
  1. weak plantar flexion at ankle
  2. eversion of foot
76
Q

fibularis longus innervation

A

superficial branch of CFN

77
Q

fibularis longus artery

A

fibular artery

78
Q

fibularis brevis origin

A

lateral aspect of fibula (inferior to longus)

79
Q

fibularis brevis insertion

A

base of 5th metatarsal

80
Q

fibularis brevis action

A
  1. weak plantarflexion
  2. eversion of foot
81
Q

fibularis brevis innervation

A

superficial branch CFN

82
Q

fibularis brevis artery

A

fibular artery

hk (4 decks)

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