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Anatomy > Leg & Foot Muscles > Flashcards

Leg & Foot Muscles Flashcards

1
Q

Extensor digitorum longus attachments

A

Lateral tibial condyle
Proximal 3/4 of fibula and crucial interosseous membrane
Dorsal digital expansions of toes 2-5

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2
Q

Extensor digitorum longus actions

A

Dorsiflexes ankle

Extends digits 2-5 (IP & MP)

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3
Q

Extensor digitorum longus innervation

A

Deep fibular n. (L4-S1)

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4
Q

Extensor hallucinations longus attachments

A

Middle 1/2 of fibular surface & crural interosseous membrane
Distal phalangeal base of 1st toe

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5
Q

Extensor hallucinations longus action

A

Dorsiflexes ankle

Extends great toe

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6
Q

Extensor hallucis longus innervation

A

Deep fibular n. (L4-S1)

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7
Q

Fibularis (peroneus) tertius attachment

A

Distal fibula & crural interosseous membrane

Base of the 5th metatarsal

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8
Q

Fibularis (peroneus) tertius action

A

Dorsiflexes ankle

Everts foot

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9
Q

Fibularis (peroneus) tertius innervation

A

Deep fibular n. (L4-S1)

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10
Q

Tibialis anterior attachments

A

Lateral condyle and proximal 2/3 lateral tibia & crural interosseous membrane
Medial cuneiform & adjacent 1st metatarsal

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11
Q

Tibialis anterior action

A

Dorsiflexes ankle

Inverts foot

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12
Q

Tibialis anterior innervation

A

Deep fibular n. (L4-S1)

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13
Q

Fibularis (peroneous) longus attach

A

Head & proximal 2/3 fibula

Lateral aspect of 1st metatarsal & adjacent medial cuneiform

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14
Q

Fibularis longus action

A

Everts foot, plantar flexes ankle

Depresses 1st metatarsal head

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15
Q

Fibularis longus innervation

A

Superficial fibular n. (L4-S1)

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16
Q

Fibularis (peroneus) brevis attachments

A

Distal 2/3 fibula

Lateral base of 5th metatarsal

17
Q

Fibularis (peroneus) brevis action

A

Everts foot

Plantar flexes ankle

18
Q

Fibularis (peroneus) brevis innervation

A

Superficial fibular n. (L4-S1)

19
Q

Flexor digitorum longus attachment

A 
Posterior tibia (distal to soleal line) 
Plantar surface of distal phalangeal bases
20
Q

Flexor digitorum longus action

A

Plantar flexes ankle

Flexes digits 2-5 (MP & IP)

21
Q

Flexor digitorum longus innervation

A

Tibial n. (L5-S1)

22
Q

Flexor hallucis longus attachments

A

Distal 2/3 posterior fibular surface & crural interosseous membrane to plantar aspect of distal phalangeal base of 1st toe

23
Q

Flexor hallucis longus action

A

Plantar flexes ankle

Flexes great toe

24
Q

Flexor hallucis longus innervation

A

Tibial n. (L5-S2)

25
Q

Gastrocnemius attachment

A

Posterior aspect of femoral condyles and joint capsule

Posterior calcaneal surface

26
Q

Gastrocnemius action

A

Flexes knee

Plantar flexes ankle

27
Q

Gastrocnemius innervation

A

Tibial n. (S1-2)

28
Q

Plantaris attach

A

Lateral supracondylar line to the posterior calcaneal surface

29
Q

Plantaris action

A

Flexes knee

Plantar flexes ankle

30
Q

Plantaris innervation

A

Tibial n. (L4-S1)

31
Q

Popliteus attach

A

Lateral femoral condyle and oblique popliteal lig.

Soleal line of tibia

32
Q

Popliteus action

A

(Unfixed) Medial rotation of tibia, knee extension
(Fixed) Lateral rotation of femur, knee flexion

Thus: unlocks the knee from extension into early flex

33
Q

Popliteus innervation

A

Tibial n. (L4-S1)

34
Q

Soleus attach

A

Posterior aspect of head & proximal 1/4 fibula & tibial soleal line
Posterior calcaneal surface

35
Q

Soleus action

A

Plantar flexes foot at ankle joint

36
Q

Soleus innervation

A

Tibial n. (L5-S2)

37
Q

Tibialis posterior attach

A

Crural interosseous membrane, lateral tibial surface & medial fibular surface to the navicular, medial & interosseous cuneiforms and bases of metatarsals 2-4

38
Q

Tibialis posterior actions

A

Inverts foot and plantar flexes ankle

39
Q

Tibialis posterior innervation

A

Tibial n. (L4-S1)

Anatomy (11 decks)

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