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Human Anatomy > Muscles Of Foot And Ankle > Flashcards

Muscles Of Foot And Ankle Flashcards

1
Q

Abductor hallucis origin

A

Oblique head: bases of metatarsals 2-4

Transverse head: plantar ligaments of MTP joint

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2
Q

Abductor hallucis insertion

A

Tendons of both heads attach to lateral side of base of proximal phalanx of 1st digit

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3
Q

Abductor hallucis action

A

Adduct first digit

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4
Q

Flexor digitorum brevis origin

A

Medial tubercle of tuberosity of calcaneus

Plantar aponeurosis

Intermuscular septa

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5
Q

Flexor digitorum brevis insertion

A

Both sides of middle phalanges of lateral four digits

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6
Q

Flexor digitorum brevis action

A

Flexes lateral four digits at MTP and IP joints

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7
Q

Abductor digiti minimi origin

A

Medial and lateral tubercles of tuberosity of calcaneus

Plantar aponeurosis

Intermuscular septa

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8
Q

Abductor digiti minimi insertion

A

Lateral side of base of proximal phalynx of 5th digit

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9
Q

Abductor digiti minimi action

A

Abducts and flexes little toes at MTP and IP joints

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10
Q

Quadratus plantae origin

A

Medial surface and lateral margin of plantar surface and calcaneus

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11
Q

Quadratus plantae insertion

A

Posterior lateral margin of tendon of flexor digitorum longus

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12
Q

Quadratus plantae action

A

Assist flexor digitorum longus in flexing lateral four digits at MTP and IP joints

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13
Q

Lumbricals origin

A

Tendons of flexor digitorum longus

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14
Q

Lumbricals insertion

A

Medial aspect of expansion overall lateral four digits

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15
Q

Lumbricals action

A

Flex proximal IP joint

Extend middle and distal IP joints of lateral four digits

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16
Q

Flexor hallucis brevis origin

A

Plantar surface of cuboid and lateral cuneiforms

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17
Q

Flexor hallucis brevis insertion

A

Both sides of base of proximal phalanx of 1st digit

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18
Q

Flexor hallucis brevis action

A

Flexes proximal IP joint of 1st digit

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19
Q

Adductor hallucis origin

A

Medial tubercle of tuberosity of calcaneus

Flexor retinaculum

Plantar aponeurosis

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20
Q

Adductor hallucis insertion

A

Medial side of base of proximal phalanx of 1st digit

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21
Q

Adductor hallucis action

A

Abducts and flexes 1st digit at MTP and IP joints

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22
Q

Flexor digiti minimi brevis origin

A

Base of 5th metatarsal

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23
Q

Flexor digiti minimi brevis insertion

A

Base of proximal phalanx of 5th digit

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24
Q

Flexor digiti minimi brevis action

A

Adduct and flex digits 3-5 at MTP joints

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25
Q

Plantar interossei origin

A

Plantar aspect of medial side of shafts of metatarsals

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26
Q

Plantar interossei insertions

A

Medial sides of bases of phalanges of 3-5 digits

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27
Q

Plantar interossei action

A

Adduct and flex digits 3-5 at MTP joints

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28
Q

Dorsal interossei origin

A

Adjacent sides of shafts of metatarsals 1-5

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29
Q

Dorsal interossei insertion

A

1st medial side of proximal phalanx of 2nd digit

2-4 lateral side of digits

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30
Q

Dorsal interossei action

A

Abduct and flex digits 2-4 at MTP joints

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31
Q

Extensor digitorum brevis origin

A

Calcaneus

Extensor retinaculum

32
Q

Extensor digitorum brevis insertion

A

Long extensor tendons of three intermediate digits

33
Q

Extensor digitorum brevis action

A

Aids EDL in extending the ties at the MTP and IP joints

34
Q

Extensor hallucis brevis origin

A

Calcaneus

Extensor retinaculum

35
Q

Extensor hallucis brevis insertion

A

Dorsal aspect of base of proximal phalynx of great toe

36
Q

Extensor hallucis brevis action

A

Aids EHL in extending the great toe at the MTP joint

37
Q

Tibialis anterior origin

A

Lateral Condyle and superior half of lateral surface of tibia

Interosseous membrane

38
Q

Tibialis anterior insertion

A

Medial and inferior surfaces of medial cuneiform and base of 1st metatarsal

39
Q

Tibialis anterior action

A

Dorsiflexion

Inverts subtalar joint

40
Q

Extensor hallucis longus origin

A

Middle part of anterior surface of fibula

Interosseous membrane

41
Q

Extensor hallucis longus insertion

A

Dorsal aspect of base of distal phalanx of great toe

42
Q

Extensor hallucis longus action

A

Extends great toe

Dorsiflexion

43
Q

Extensor digitorum longus origin

A

Lateral Condyle of tibia and superior three quarters of medial surface of fibula

Interosseous membrane

44
Q

Extensor digitorum longus insertion

A

Middle and distal phalanges of lateral four digits

45
Q

Extensor digitorum longus action

A

Extends lateral four digits

Dorsiflexion

46
Q

Fibularis tertius origin

A

Inferior third of anterior surface of fibula

Interosseous membrane

47
Q

Fibularis tertius insertion

A

Dorsum of base of 5th metatarsal

48
Q

Fibularis tertius action

A

Dorsiflexion

Eversion of subtalar joint

49
Q

Fibularis longus origin

A

Hear and superior two thirds of lateral surface of fibula

50
Q

Fibularis longus insertion

A

Base of 1st metatarsal and medial cuneiform

51
Q

Fibularis longus action

A

Eversion of subtalar joint

52
Q

Fibularis brevis origin

A

Inferior 2/3 of lateral surface of fibula

53
Q

Fibularis brevis insertion

A

Dorsal surface of tuberosity on lateral side of base of 5th metatarsal

54
Q

Fibularis brevis action

A

Eversion of subtalar joint

55
Q

Gastrocnemius origin

A

Lateral head: lateral aspect of lateral Condyle of femur

Medial head: popliteal surface of femur, superior to medial Condyle

56
Q

Gastrocnemius insertion

A

Posterior surface of calcaneus via Achilles tendon

57
Q

Gastrocnemius action

A

Plantar flexion when knee is extended

Flexes knee joint

58
Q

Soleus origin

A

Posterior aspect of fibula head

Superior aspect of posterior surface of fibula

Soleal line and middle third of medial border of tibia

59
Q

Soleus insertion

A

Posterior surface of calcaneus via Achilles tendon

60
Q

Soleus action

A

Plantar flexion

Stabilizes ankle joint

61
Q

Plantaris origin

A

Inferior end of lateral supracondylar line of femur

Oblique popliteal ligament

62
Q

Plantaris insertion

A

Posterior surface of calcaneus via Achilles tendon

63
Q

Plantaris action

A

Weakly assists gastric in plantar flexion

64
Q

Popliteus origin

A

Lateral surface of lateral Condyle of femur and lateral meniscus

65
Q

Popliteus insertion

A

Posterior surface of tibia

Superior to soleal line

66
Q

Popliteus action

A

Weakly flexes knee joint and unlocks it

67
Q

Flexor hallucis longus origin

A

Inferior 2/3 of posterior surface of fibula

Inferior part of Interosseous membrane

68
Q

Flexor hallucis longus insertion

A

Base of distal phalanx of great toe

69
Q

Flexor hallucis longus action

A

Flexes great toe at all joints

Weak plantar flexion

Supports medial longitudinal arch

70
Q

Flexor digitorum longus origin

A

Medial part of posterior surface of tibia inferior to soleal line

71
Q

Flexor digitorum longus insertion

A

Bases of distal phalanges of lateral four digits

72
Q

Flexor digitorum longus action

A

Flexes lateral four digits

Plantar flexion

Supports longitudinal arches of foot

73
Q

Tibialis posterior origin

A

Interosseous membrane

Posterior surface of tibia inferior to soleal line

Posterior surface of fibula

74
Q

Tibialis posterior insertion

A

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

75
Q

Tibialis posterior action

A

Plantar flexion

Inversion

Maintains medial longitudinal arch

Human Anatomy (26 decks)

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