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Anatomy > Leg and Foot Muscles > Flashcards

Leg and Foot Muscles Flashcards

1
Q

Tibialis anterior nerve

A

Deep fibular

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2
Q

Tibialis anterior origin (2)

A

Lateral tibial condyle, interosseous membrane

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3
Q

Tibialis anterior insertion (2)

A

Medial cuneiform and base of 1st metatarsal

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4
Q

Tibialis anterior action (2)

A

Dorsiflexes ankle and inverts foot

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5
Q

Extensor digitorum longus nerve

A

Deep fibular

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6
Q

Extensor digitorum longus insertion

A

Middle and distal phalanges of lateral 4 digits

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7
Q

Extensor digitorum longus action (2)

A

Extends toes, dorsiflexes foot

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8
Q

Extensor hallucis longus nerve

A

Deep fibular

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9
Q

Extensor hallucis longus insertion

A

Dorsal aspect of base of distal phalanx of hallux

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10
Q

Extensor hallucis action (3)

A

Extends hellux, dorsiflexes and inverts foot

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11
Q

Fibularis tertius nerve

A

Deep fibular

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12
Q

Fibularis tertius insertion

A

Dorsum of base of 5th metatarsal

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13
Q

Fibularis tertius action (2)

A

Dorsiflexes and everts foot

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14
Q

Fibularis longus nerve

A

Superficial fibular

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15
Q

Fibularis longus origin

A

Head/upper lateral side of fibula

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16
Q

Fibularis longus insertion (2)

A

Base of 1st metatarsal and medial cuneiform

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17
Q

Fibularis longus action (2)

A

Everts foot and plantar flexes foot

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18
Q

Fibularis brevis nerve

A

Superficial fibular

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19
Q

Fibularis brevis origin

A

Lower lateral fibula

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20
Q

Fibularis brevis insertion

A

base of 5th metatarsal

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21
Q

Fibularis brevis action (2)

A

Everts foot and plantar flexes foot

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22
Q

Gastrocnemius nerve

A

Tibial

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23
Q

Gastrocnemius origin (2)

A

Lateral head - lateral femoral condyle

Medial head - medial femoral condyle

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24
Q

Gastrocnemius insertion

A

Calcaneal tendon

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25
Q

Gastrocnemius action (2)

A

Flexes knee, plantar flexes foot

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26
Q

Soleus nerve

A

Tibial

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27
Q

Soleus insertion

A

Calcaneal tendon

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28
Q

Soleus action

A

Plantar flexes foot

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29
Q

Plantaris nerve

A

Tibial

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30
Q

Plantaris origin

A

Lower lateral supracondylar line of femur

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31
Q

Plantaris insertion

A

Calcaneal tendon

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32
Q

Plantaris action (2)

A

Flexes and rotates leg medially

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33
Q

Popliteus nerve

A

Tibial

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34
Q

Popliteus origin (20

A

Lateral condyle of femur, popliteal ligament

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35
Q

Popliteus insertion

A

Upper posterior side of tibia

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36
Q

Popliteus action (3)

A

Flexes and rotates leg medially, “unlocks” knee

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37
Q

Flexor hallucis longus nerve

A

Tibial

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38
Q

Flexor hallucis longus origin

A

Lower 2/3 of fibula

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39
Q

Flexor hallucis longus insertion

A

Base of distal phalanx of hallux

40
Q

Flexor hallucis longus action

A

Flexes distal phalanx of big toe

41
Q

Flexor digitorum longus nerve

A

Tibial

42
Q

Flexor digitorum longus origin

A

Middle posterior tibia

43
Q

Flexor digitorum longus insertion

A

Distal phalanges of lateral 4 digits

44
Q

Flexor digitorum longus action (2)

A

Flexes lateral 4 toes, plantar flexes foot

45
Q

Tibialis posterior nerve

A

Tibial

46
Q

Tibialis posterior origin

A

Upper parts of tibia/fibula

47
Q

Tibialis posterior insertion

A

Tuberosity of navicular, cuneiform, and cuboid and bases of 2-4 metatarsals

48
Q

Tibialis posterior action (2)

A

Plantar flexes and inverts foot

49
Q

Extensor digitorum brevis nerve

A

Deep fibular

50
Q

Extensor digitorum brevis origin

A

Dorsal surface of calcaneus

51
Q

Extensor digitorum brevis insertion

A

Tendons of extensor digitorum longus

52
Q

Extensor digitorum brevis action

A

Extends toes

53
Q

Extensor hallucis brevis nerve

A

Deep fibular

54
Q

Extensor hallucis brevis origin

A

Dorsal surface of calcaneus

55
Q

Extensor hallucis brevis insertion

A

Base of proximal phalanx of big toe

56
Q

Extensor hallucis brevis action

A

Extends big toe

57
Q

Abductor hallucis nerve

A

Medial plantar

58
Q

Abductor hallucis origin

A

Medial tubercle of calcaneus

59
Q

Abductor hallucis insertion

A

Base of proximal phalanx of hallux

60
Q

Abductor hallucis action

A

Abducts hallux

61
Q

Flexor digitorum brevis nerve

A

Medial plantar

62
Q

Flexor digitorum brevis origin

A

Medial tubercle of calcaneus

63
Q

Flexor digitorum brevis insertion

A

Middle phalanges of lateral 4 toes

64
Q

Flexor digitorum brevis action

A

Flexes middle phalanges of lateral 4 toes

65
Q

Abductor digiti minimi nerve

A

Lateral plantar

66
Q

Abductor digiti minimi origin (2)

A

Medial and lateral tubercles of calcaneus

67
Q

Abductor digiti minimi insertion

A

Proximal phalanx of 5th toe

68
Q

Abductor digiti minimi action

A

Abducts 5th toe

69
Q

Quadratus plantae nerve

A

Lateral plantar

70
Q

Quadratus plantae origin

A

Calcaneus

71
Q

Quadratus plantae insertion

A

Tendons of flexor digitorum longus

72
Q

Quadratus plantae action

A

Aids in flexing toes

73
Q

Lumbricals nerve (2)

A

1st - medial plantar

2,3,4 - lateral plantar

74
Q

Lumbricals origin

A

Tendons of flexor digitorum longus

75
Q

Lumbricals insertion

A

Proximal phalanges extensor expansion

76
Q

Lumbricals action (2)

A

Flex metatarsalphalangeal joints and extend interphalangeal joints

77
Q

Flexor hallucis brevis nerve

A

Medial plantar

78
Q

Flexor hallucis brevis origin (2)

A

cuboid, 3rd cuneiform

79
Q

Flexor hallucis brevis insertion

A

Proximal phalanx of hallux

80
Q

Flexor hallucis brevis action

A

Flexes hallux

81
Q

Adductor hallucis: oblique head nerve

A

Lateral plantar

82
Q

Adductor hallucis: oblique head origin

A

Bases of 2-4 metatarsals

83
Q

Adductor hallucis: oblique head insertion

A

Proximal phalanx of hallux

84
Q

Adductor hallucis: oblique head action

A

Adducts hallux

85
Q

Flexor digiti minimi brevis nerve

A

Lateral plantar

86
Q

Flexor digiti minimi brevis origin

A

Base of 5th metatarsal

87
Q

Flexor digiti minimi brevis insertion

A

Proximal phalanx of 5th toe

88
Q

Flexor digiti minimi brevis action

A

Flexes 5th toe

89
Q

Plantar interossei nerve

A

Lateral plantar

90
Q

Plantar interossei origin

A

Medial sides of 3rd-5th metatarsals

91
Q

Plantar interossei insertion

A

Medial sides of base of 3rd-5th proximal phalanges

92
Q

Plantar interossei action (3)

A

Adduct toes, flex proximal and extend distal phalanges

93
Q

Dorsal interossei nerve

A

Lateral plantar

94
Q

Dorsal interossei origin

A

Adjacent shafts of metatarsals

95
Q

Dorsal interossei insertion

A

Proximal phalanges of 2nd toe (med and lat sides), and lateral sides of 3rd and 4th toes

96
Q

Dorsal interossei action (3)

A

Abduct toes, flex proximl and extend distal phalanges

Anatomy (28 decks)

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