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Anatomy Lab > Leg Muscles > Flashcards

Leg Muscles Flashcards

(60 cards)

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1
Q

Gastrocnemius origin

A

Posterior femur, proximal to lateral and medial condyles

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2
Q

Gastrocnemius insertion

A

Calcaneal tendon (Achilles) to calcaneal tuberosity

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3
Q

Gastrocnemius action

A

Flex knee (open chain), plantar flex ankle

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4
Q

Gastrocnemius innervation

A

Tibial nerve

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5
Q

Gastrocnemius blood supply

A

Medial head - medial sural artery
Lateral head - lateral sural artery

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6
Q

Soleus origin

A

Soleal line, proximal 1/3 posterior tibia and fibula

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7
Q

Soleus insertion

A

Calcaneal tendon to calcaneous

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8
Q

Soleus action

A

Plantar flex the ankle

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9
Q

Soleus innervation

A

Tibial nerve

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10
Q

Soleus blood supply

A

Popliteal artery, post tibial artery, peroneal artery

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11
Q

Plantaris origin

A

Lateral femoral epicondyle

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12
Q

Plantaris insertion

A

Calcaneous, anteromedial to Achilles tendon

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13
Q

Plantaris action

A

Weak plantar flexion of ankle, weak flexion of knee (open chain)

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14
Q

Plantaris innervation

A

Tibial nerve

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15
Q

Plantaris blood supply

A

Superficial- lateral sural artery
Deep - superior lateral genicular artery

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16
Q

Flexor digitorum longus origin

A

Middle 1/3 posterior surface of tibia

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17
Q

Flexor digitorum longus insertion

A

Distal phalanges of lateral 4 toes (2-5)

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18
Q

Flexor digitorum longus action

A

Flex toes 2-5
Weak plantar flexion and inversion of ankle

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19
Q

Flexor digitorum longus innervation

A

Tibial nerve

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20
Q

Flexor digitorum longus blood supply

A

Posterior tibial artery

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21
Q

Flexor hallucis longus origin

A

Middle 1/3 posterior surface of fibula

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22
Q

Flexor hallucis longus insertion

A

Distal phalanx of big toe

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23
Q

Flexor hallucis longus action

A

Flex big toe, weak ankle plantar flexion

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24
Q

Flexor hallucis longus blood supply

A

Posterior tibial artery

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25
Flexor hallucis longus innervation
Tibial nerve
26
Tibialis posterior origin
Proximal 2/3 posterior surface of tibia, proximal 2/3 surface of fibula and interosseous membrane
27
Tibialis posterior insertion
Navicular, cuneiforms, cuboid, bases of MT 2-4
28
Tibialis posterior action
Ankle inversion
29
Tibialis posterior innervation
Tibial nerve
30
Tibialis posterior blood supply
Posterior tibial artery
31
Peroneous (fibularis) longus origin
Proximal 2/3 lateral surface of fibula
32
Peroneous longus insertion
Base of 1st metatarsal, medial cuneiform
33
Peroneous longus action
Ankle eversion, weak plantar flexion of ankle
34
Peroneous longus innervation
Superficial peroneal nerve
35
Peroneous longus blood supply
Peroneal artery
36
Peroneous brevis origin
Distal 2/3 lateral surface of fibula
37
Peroneous brevis insertion
Dorsal surface of 5th metatarsal
38
Peroneous brevis action
Ankle eversion, weak plantar flexion of ankle
39
Peroneous brevis innervation
Superficial Peroneal nerve
40
Peroneous brevis blood supply
Branches of peroneal and tibial arteries
41
Tibialis anterior origin
Lateral condyle of tibia, proximal 2/3 lateral surface of tibia
42
Tibialis anterior insertion
Medial cuneiform, base of 1st metatarsal
43
Tibialis anterior action
Dorsiflexion of ankle, ankle inversion
44
Tibialis anterior innervation
Deep fibular nerve
45
Tibialis anterior blood supply
Anterior tibial artery
46
Extensor digitorum longus origin
Lateral tibial condyle
47
Extensor digitorum longus insertion
Middle and distal phalanges 2-5
48
Extensor digitorum longus action
Extend toes 2-3, ankle eversion, ankle dorsiflexion
49
Extensor digitorum longus innervation
Deep fibular nerve
50
Extensor digitorum longus blood supply
Anterior tibial artery
51
Extensor hallucis longus origin
Middle 1/3 of anterior fibula
52
Extensor hallucis longus insertion
Distal phalanx of big toe
53
Extensor hallucis longus action
Extend big toe, ankle dorsiflexion and eversion
54
Extensor hallucis longus blood supply
Anterior tibial artery
55
Extensor hallucis longus innervation
Deep fibular nerve
56
Peroneous tertius origin
Fibula, common fibers from extensor digitorum longus
57
Peroneous tertius insertion
Dorsal surface, base of 5th metatarsal
58
Peroneous tertius action
Ankle dorsiflexion
59
Peroneous tertius innervation
Deep fibular nerve
60
Peroneous tertius blood supply
Dorsalis pedis artery

Anatomy Lab (13 decks)

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