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Anatomy > O's and I's Foot Intrinsics > Flashcards

O's and I's Foot Intrinsics Flashcards

1
Q

Abductor Hallucis Origin

A
  1. Medial process of Calcaneus

2. Plantar Aponeurosis

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2
Q

Abductor Hallucis Insertion

A

Medial side of base of proximal phalanx of big toe

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3
Q

Abductor Hallucis Action

A
  1. Abducts big toe

2. Assists in flexing Hallux

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4
Q

Abductor Hallucis Nerve

A

Medial Plantar

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5
Q

Flexor Digitorum Brevis Origin

A
  1. Anterior aspect of medial process of Calcaneus

2. Plantar Aponeurosis

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6
Q

Flexor Digitorum Brevis Insertion

A

Splits to attach on both sides of the middle phalanx of toes 2-5

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7
Q

Flexor Digitorum Brevis Action

A

Flexes toes 2-5

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8
Q

Flexor Digitorum Brevis Nerve

A

Medial Plantar

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9
Q

Abductor Digiti Minimi Origin

A
  1. Lateral process of Calcaneus

2. Plantar Aponeurosis

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10
Q

Abductor Digiti Minimi Insertion

A

Lateral side of the base of the proximal phalanx of the 5th toe

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11
Q

Abductor Digiti Minimi Action

A

Abducts and flexes 5th toe

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12
Q

Abductor Digiti Minimi Nerve

A

Lateral Plantar

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13
Q

Quadratus Plantae Origin

A
  1. Medial Head: Medial Calcaneus

2. Lateral Head: Lateral Calcaneus and long plantar ligament

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14
Q

Quadratus Plantae Insertion

A

Lateral edge of tendon of Flexor Digitorum Longus

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15
Q

Quadratus Plantae Action

A

Aids to flex toes 2-5 by offsetting the oblique pull of the Flexor Digitorum Longus

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16
Q

Quadratus Plantae Nerve

A

Lateral Plantar

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17
Q

Lumbricales Origin

A

From the tendon of the Flexor Digitorum Longus (4 Muscles)

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18
Q

Lumbricales Insertion

A

Onto tendons of Extensor Digitorum Longus

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19
Q

Lumbricales Action

A
  1. Flexes proximal phalanx at MTP joint

2. Extends middle and distal phalanges at IP joints

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20
Q

Lumbricales Nerve

A

1st- Medial Plantar

2nd-4th- Lateral Plantar

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21
Q

Flexor Hallucis Brevis Origin

A

Medial aspect of Cuboid

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22
Q

Flexor Hallucis Brevis Insertion

A

Base of proximal phalanx of Hallux

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23
Q

Flexor Hallucis Brevis Action

A

Flexes big toe

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24
Q

Flexor Hallucis Brevis Nerve

A

Medial Plantar

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25
Q

Adductor Hallucis Origin

A
  1. Oblique Head: Base of 2nd-4th Metatarsals and Long Plantar Ligament
  2. Transverse Head: Transverse Metatarsal Ligament and Plantar ligaments at MTP joint
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26
Q

Adductor Hallucis Insertion

A

Lateral aspect of the base of the proximal phalanx of Hallux

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27
Q

Adductor Hallucis Action

A
  1. Adducts big toe

2. Flexes big toe

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28
Q

Adductor Hallucis Nerve

A

Lateral Plantar

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29
Q

Flexor Digiti Minimi Brevis Origin

A

Base of 5th Metatarsal

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30
Q

Flexor Digiti Minimi Brevis Insertion

A

Lateral aspect of the base of the proximal phalanx of the 5th ray

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31
Q

Flexor Digiti Minimi Brevis Action

A

Flexes 5th toe

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32
Q

Flexor Digiti Minimi Brevis Nerve

A

Lateral Plantar

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33
Q

Plantar Interossei Origin

A

Medial aspect of 3rd-5th Metatarsals

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34
Q

Plantar Interossei Insertion

A

Medial aspect of base of proximal phalanx of the same ray (3rd-5th)

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35
Q

Plantar Interossei Action

A
  1. Adducts toes 3-5

2. Flexes toes 3-5

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36
Q

Plantar Interossei Nerve

A

Lateral Plantar

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37
Q

Dorsal Interossei Origin

A

From both metatarsals between which they lie

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38
Q

Dorsal Interossei Insertion

A
  1. Medial side of proximal phalanx of 2nd toe
  2. Lateral side of proximal phalanx of 2nd toe
  3. Lateral side of proximal phalanx of 3rd toe
  4. Lateral side of proximal phalanx of 4th toe
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39
Q

Dorsal Interossei Action

A
  1. Abducts toes 2-4

2. Flexes toes 2-4

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40
Q

Dorsal Interossei Nerve

A

Lateral Plantar

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41
Q

Extensor Hallucis Brevis Origin

A

Dorsal surface of Calcaneus

42
Q

Extensor Hallucis Brevis Insertion

A

Base of proximal phalanx of hallux on dorsum

43
Q

Extensor Hallucis Brevis Action

A

Extends big toe

44
Q

Extensor Hallucis Brevis Nerve

A

Deep Peroneal

45
Q

Extensor Digitorum Brevis Origin

A

Dorsal surface of anterolateral calcaneus

46
Q

Extensor Digitorum Brevis Insertion

A

Lateral side of tendons of Extensor Digitorum Longus for 2nd-4th toes

47
Q

Extensor Digitorum Brevis Action

A

Extends 2nd-4th toes

48
Q

Extensor Digitorum Brevis Nerve

A

Deep Peroneal

49
Q

Gastrocnemius Origin

A
  1. Medial Head: Just above the Medial Condyle of Femur

2. Lateral Head: Lateral Condyle of Femur

50
Q

Gastrocnemius Insertion

A

Calcaneus

51
Q

Gastrocnemius Action

A
  1. Plantar Flexes Ankle

2. Flexes Knee

52
Q

Gastrocnemius Nerve

A

Tibial

53
Q

Soleus Origin

A
  1. Soleal Line of Tibia

2. Upper Fibula

54
Q

Soleus Insertion

A

Calcaneus

55
Q

Soleus Action

A

Plantar Flexes Ankle

56
Q

Soleus Nerve

A

Tibial

57
Q

Plantaris Origin

A

Lateral Femoral Condyle

58
Q

Plantaris Insertion

A

Calcaneus

59
Q

Plantaris Action

A
  1. Weakly Plantar Flexes Ankle

2. Weakly Flexes Knee

60
Q

Plantaris Nerve

A

Tibial

61
Q

Popliteus Origin

A

Lateral Femoral Epicondyle

62
Q

Popliteus Insertion

A

Soleal Line

63
Q

Popliteus Action

A
  1. Insertion fixed: Laterally rotates Femur on Tibia and unlocks (flexes) knee
  2. Origin fixed: Medially rotates Tibia on Femur and unlocks (flexes) knee
64
Q

Popliteus Nerve

A

Tibial

65
Q

Tibialis Posterior Origin

A
  1. Posterior Tibia

2. Interosseus Membrane

66
Q

Tibialis Posterior Insertion

A
  1. Navicular Tuberosity
  2. Plantar surface of Cuneiforms and Cuboid
  3. Bases of 2nd-4th Metatarsals
67
Q

Tibialis Posterior Action

A
  1. Inversion
  2. Horizontal Adduction
  3. Weakly Plantar Flexes Ankle
  4. Functionally: Resists Hyperpronation
68
Q

Tibialis Posterior Nerve

A

Tibial

69
Q

Flexor Digitorum Longus Origin

A

Posterior Surface of Tibia

70
Q

Flexor Digitorum Longus Insertion

A

Plantar Surface of the bases of 2nd-5th Distal Phalanges

71
Q

Flexor Digitorum Longus Action

A
  1. Primarily Flexes 2nd-5th Toes
  2. Weakly Plantar Flexes Ankle
  3. Weakly Inverts and Adducts Foot
72
Q

Flexor Digitorum Longus Nerve

A

Tibial

73
Q

Flexor Hallucis Longus Origin

A
  1. Posterior, Inferior 2/3 Fibula

2. Interosseus Membrane

74
Q

Flexor Hallucis Longus Insertion

A

Plantar Surface of Distal Phalanx of Hallux

75
Q

Flexor Hallucis Longus Action

A
  1. Flexes Hallux
  2. Weakly Plantar Flexes Ankle
  3. Weakly Inverts and Adducts Foot
76
Q

Flexor Hallucis Longus Nerve

A

Tibial

77
Q

Peroneus (Fibularis) Longus Origin

A
  1. Head of Fibula

2. Upper Half of Fibula

78
Q

Peroneus (Fibularis) Longus Insertion

A
  1. Base of 1st Metatarsal
  2. 1st Cuneiform
  3. Base of 2nd Metatarsal
79
Q

Peroneus (Fibularis) Longus Action

A
  1. Everts and Horizontally Abducts Foot

2. Weakly Plantar Flexes Foot

80
Q

Peroneus (Fibularis) Longus Nerve

A

Superficial Fibular

81
Q

Peroneus (Fibularis) Brevis Origin

A

Lower Half of Fibula

82
Q

Peroneus (Fibularis) Brevis Insertion

A

Tuberosity on Lateral Aspect of Base of 5th Metatarsal

83
Q

Peroneus (Fibularis) Brevis Action

A
  1. Everts and Horizontally Abducts Foot

2. Weakly Plantar Flexes Foot

84
Q

Peroneus (Fibularis) Brevis Nerve

A

Superficial Fibular

85
Q

Tibialis Anterior Origin

A

Lateral Tibial Condyle and Anterolateral Surface of Tibia

86
Q

Tibialis Anterior Insertion

A
  1. Medial and Plantar Surface of Base of 1st Metatarsal

2. Medial and Plantar Surface of 1st Cuneiform

87
Q

Tibialis Anterior Action

A
  1. Dorsiflexes Foot

2. Helps Invert and Horizontally Adduct Foot

88
Q

Tibialis Anterior Nerve

A

Deep Fibular

89
Q

Extensor Hallucis Longus Origin

A
  1. Medial Aspect of Fibula

2. Interosseus Membrane

90
Q

Extensor Hallucis Longus Insertion

A

Dorsal Surface of Base of Proximal and Distal Phalanx of Hallux

91
Q

Extensor Hallucis Longus Action

A
  1. Extends Distal Phalanx of Big Toe
  2. Weakly Dorsiflexes Foot
  3. Weakly Inverts and Adducts Foot
92
Q

Extensor Hallucis Longus Nerve

A

Deep Fibular

93
Q

Extensor Digitorum Longus Origin

A
  1. Upper Anterior Surface of Fibula

2. Interosseus Membrane

94
Q

Extensor Digitorum Longus Insertion

A

Dorsal Surface of the Bases of the Middle and Distal Phalanxes of the 2nd-5th Rays

95
Q

Extensor Digitorum Longus Action

A
  1. Extends Lateral 4 Toes

2. Weakly Dorsiflexes and Everts Foot

96
Q

Extensor Digitorum Longus Nerve

A

Deep Fibular

97
Q

Peroneus Tertius Origin

A

Distal 1/3 of Anterior Fibula

98
Q

Peroneus Tertius Insertion

A

Dorsal Surface of the Base of the 5th Metatarsal

99
Q

Peroneus Tertius Action

A

Weakly Dorsiflexes and Everts Foot

100
Q

Peroneus Tertius Nerve

A

Deep Fibular

Anatomy (12 decks)

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