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Lower Limb Anatomy > Muscles of the Leg > Flashcards

Muscles of the Leg Flashcards

1
Q

Tibialis anterior origin

A

Lateral condyle and upper 2/3 of lateral surface of tibia

Interosseus membrane

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2
Q

Tibialis anterior insertion

A

Medial plantar surface of medial cuneiform and base of first metatarsal

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3
Q

Tibialis anterior innervation

A

Deep fibular (peroneal) nerve

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4
Q

Tibialis anterior function

A

Dorsiflex and invert at ankle

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5
Q

Extensor hallucis longus origin

A

Medial 2/3 of anterior surface of fibula and interosseus membrane

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6
Q

EHL insertion

A

base of distal phalanx and base of first metatarsal (partial)

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7
Q

EHL innervation

A

Deep peroneal nerve

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8
Q

EHL function

A

Extend first MPJ
Dorsiflex ankle
Supinate intertarsal joints

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9
Q

EHC origin

A

Extention of EHL tendon

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10
Q

EHC insertion

A

Medial surface of first MJP capsule

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11
Q

EHC function

A

Lift capsule of first MPJ to prevent entrapment

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12
Q

EDL origin

A

Lateral condyle of tibia
Head and anterior 3/4 of fibula
Interosseus membrane

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13
Q

EDL insertion

A

Extensor expansion of digits 2-5

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14
Q

EDL innervation

A

Deep peroneal nerve

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15
Q

EDL function

A

Extend MPJs

Dorsiflex and evert ankle

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16
Q

Peroneus tertius origin

A

Lower third of anterior fibula

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17
Q

Peroneus tertius insertion

A

Base of 5th metatarsal

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18
Q

Peroneus tertius innervation

A

Deep peroneal nerve

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19
Q

Peroneus tertius function

A

Dorsiflex and evert ankle

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20
Q

Peroneus longus origin

A

Head and upper 2/3 of lateral surface of fibula

Lateral tibial condyle

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21
Q

Peroneus longus insertion

A

Lateral base of 1st metatarsal

Lateral side of medial cuneiform

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22
Q

Peroneus longus innervation

A

Superficial peroneal nerve

23
Q

Peroneus longus function

A

Plantarflex and evert ankle

24
Q

Peroneus brevis origin

A

Lower 2/3 of lateral surface of fibula

25
Q

Peroneus brevis insertion

A

Tuberosity of 5th metatarsal

26
Q

Peroneus brevis innervation

A

Superficial peroneal nerve

27
Q

Peroneus brevis function

A

Plantarflex and evert ankle

28
Q

Gastrocnemius origin

A

Medial and lateral condyles of femur

29
Q

Gastrocnemius insertion

A

Central part of posterior surface of calcaneus in common with soleus as tendo calcaneus

30
Q

Gastrocnemius innervation

A

Tibial nerve

31
Q

Gastrocnemius function

A

Plantarflex ankle

Flex knee

32
Q

Soleus origin

A

Posterior surface of head and body of fibula
Soleal line of tibia
Middle third of tibia

33
Q

Soleus insertion

A

Tendo calcaneus

34
Q

Soleus function

A

Plantarflex ankle

35
Q

Plantaris origin

A

Lateral supracondylar line of femur

Oblique popliteal ligament

36
Q

Plantaris insertion

A

Medial side of posterior surface of calcaneus

37
Q

Plantaris innervation

A

TIbial nerve

38
Q

Plantaris function

A

Plantarflex ankle

Flex knee

39
Q

Popliteus forms

A

Inferior portion of floor of popliteal fossa

40
Q

Popliteus origin

A

Lateral condyle of femur
Arcuate popliteal ligament
Lateral meniscus

41
Q

Popliteus insertion

A

Proximal to soleal line on body of tibia

42
Q

Popliteus innervation

A

tibial nerve

43
Q

Popliteus function

A

Flex knee
Rotate leg medially
Unlock knee

44
Q

FHL origin

A

Distal 2/3 of posterior surface of fibula

45
Q

FHL insertion

A

Base of terminal phalanx of first digit

46
Q

FHL innervation

A

Tibial nerve

47
Q

FHL function

A

Flex IPJ of first digit
Plantarflex ankle
Supinate intertarsal joints

48
Q

FDL origin

A

Medial to vertical line on posterior proximal 2/3s of tibia

49
Q

FDL innervation

A

Tibial nerve

50
Q

FDL function

A

flexes IPJs and plantar flex ankle

Supinate intertarsal joints

51
Q

TP origin

A

Upper 2/3s of posterior tibia lateral to vertical line

52
Q

TP innervation

A

Tibial nerve

53
Q

TP function

A

Supinate intertarsal joints

Plantarflex ankle

Lower Limb Anatomy (15 decks)

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