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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
soleus insertion
posterior aspect of calcaneus via calcaneal tendon
26
soleus action
1. plantarflexion at ankle
27
soleus innervation
tibial nerve
28
soleus artery
posterior tibial artery
29
plantaris origin
lateral condyle of femur
30
plantaris insertion
posterior aspect of calcaneus via calcaneal tendon
31
plantaris action
1. weak plantarflexion at ankle 2. proprioception
32
plantaris innervation
tibial nerve
33
plantaris artery
posterior tibial artery
34
popliteus origin
lateral surface of lateral condyle of femur
35
popliteus insertion
posterior surface of tibia - region above soleal line
36
popliteus action
1. week knee flexion 2. unlocks knee: rotate femur laterally on fixed tibia. rotate tibia on unplanted limb
37
popliteus innervation
tibial nerve
38
popliteus artery
posterior tibial artery
39
tibialis posterior origin
posterior tibia and fibula interosseous membrane
40
tibialis posterior insertion
navicular cuneiform (MIL) cuboid base of metatarsals 2-4
41
tibialis posterior action
1. inversion of foot (tilting sole towards midline) 2. plantarflexion at ankle
42
tibialis posterior innervation
tibial nerve
43
tibialis posterior artery
posterior tibial artery
44
flexor hallucis longus origin
posterior fibula interosseous membrane
45
flexor hallucis longus insertion
base of distal phalange 1 (big toe)
46
flexor hallucis longus action
1. plantarflexion at ankle 2. flexion at joints proximal to insertion
47
flexor hallucis longus innervation
tibial nerve
48
flexor hallucis longus artery
posterior tibial artery
49
flexor digitorum longus origin
posterior tibia interosseous membrane
50
flexor digitorum longus insertion
base of distal phalanges (2-5)
51
flexor digitorum longus action
1. plantarflexion at ankle 2. flexion at joints proximal to insertion
52
flexor digitorum longus innervation
tibial nerve
53
flexor digitorum longus artery
posterior tibial artery
54
what is the interosseus membrane?
ligament between fibula and tibia
55
what does tibialis posterior do that FDH & FHL dont?
inversion of foot
56
how many muscles in anterior compartment of leg? what are they?
3. 1. tibialis anterior 2. extensor hallicus longus 3. extensor digitorum longus
57
tibialis anterior origin
lateral surface of tibia interosseus membrane
58
tibialis anterior insertion
1st metatarsal medial cuneiform
59
tibialis anterior action
1. inversion of foot 2. dorsiflexion at ankle
60
tibialis anterior innervation
deep branch of CFN
61
tibialis anterior artery
anterior tibial artery
62
extensor hallicis longus origin
anterior fibula interosseus membrane
63
extensor hallicis longus insertion
distal phylange digit 1 (big toe)
64
extensor hallicis longus action
1. dorsiflexion at ankle 2. extension of big toe (extension of joints proximal to insertion)
65
extensor hallicis longus innervation
deep branch CFN
66
extensor hallicis longus artery
anterior tibial artery
67
extensor digitorum longus origin
anterior fibula interosseus membrane
68
extensor digitorum longus insertion
middle & distal phalanges of 2-5
69
extensor digitorum longus action
1. dorsiflexion at ankle 2. extension of digits 2-5 (extension of joints proximal to insertion )
70
extensor digitorum longus innervation
deep branch of CFN
71
extensor digitorum longus artery
anterior tibial artery
72
what 2 muscles on lateral compartment of leg?
fibularis longus fibularis brevis
73
fibularis longus origin
lateral aspect of fibula (superior to attachment of brevis)
74
fibularis longus insertion
medial cuneiform base of 1st metatarsal
75
fibularis longus action
1. weak plantar flexion at ankle 2. eversion of foot
76
fibularis longus innervation
superficial branch of CFN
77
fibularis longus artery
fibular artery
78
fibularis brevis origin
lateral aspect of fibula (inferior to longus)
79
fibularis brevis insertion
base of 5th metatarsal
80
fibularis brevis action
1. weak plantarflexion 2. eversion of foot
81
fibularis brevis innervation
superficial branch CFN
82
fibularis brevis artery
fibular artery

hk (4 decks)

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