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Anatomy Muscle Cards > Anterior, lateral, and posterior compartments of the leg > Flashcards

Anterior, lateral, and posterior compartments of the leg Flashcards

0
Q

Flexor digitorum brevis distal

A

both sides of MIDDLE phalanges of lateral four digits

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1
Q

Flexor Digitorum Brevis proximal

A

medial process of tuber calcanei, plantar aponeurosis, and intermuscular septa

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2
Q

Flexor digitorum brevis innervation

A

Medial plantar nerve

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3
Q

Flexor digitorum brevis action

A

flexes lateral four digits (toes)

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4
Q

Flexor hallucis brevis proximal attachment

A

plantar surfaces of cuboid and lateral cuneiform bones

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5
Q

Flexor hallucis brevis distal attachment

A

both sides of base of proximal phalanx of great toe

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6
Q

Flexor hallucis brevis innervation

A

Medial plantar nerve

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7
Q

Flexor hallucis brevis action

A

flexes proximal phalanx of great toe (hallux)

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9
Q

Tibialis Anterior proximal attachment

A

Lateral condyle and superior 2/3 of lateral surface of tibia; and fascia: anterior interosseus membrane, intermuscular septum

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10
Q

Tibialis Anterior distal attachment

A

Medial and plantar surfaces of medial cuneiform bone and base of first metatarsal bone

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11
Q

Extensor hallucis Longus proximal attachment

A

Middle part of anterior surface of fibula and fascia: interosseous membrane

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12
Q

Extensor hallucis Longus distal attachment

A

Dorsal aspect of base of distal phalanx of great toe (hallux)

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13
Q

Extensor hallucis Longus innervation

A

Deep fibular nerve

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14
Q

Extensor hallucis Longus action

A

Extends great toe and Dorsiflexes foot (ankle)

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15
Q

Fibularis (Peroneus) longus proximal attachment

A

Head and superior twothirds of lateral surface of fibula, fascia: intermuscular septum; a few fibers from lateral tibial condyle

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16
Q

Fibularis (Peroneus) longus distal attachment

A

plantar surface of base of first metatarsal bone and medial cuneiform bone descends posterior to lateral malleolus, inferior to fibular (peroneal) trochlea & plantar groove on cuboid; crosses sole obliquely

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17
Q

Fibularis (Peroneus) longus innervation

A

Superficial fibular nerve

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18
Q

Extensor digitorum longus proximal attachment

A

Lateral condyle of tibia, superior three-fourths of anterior surface of fibula, and fascia: interosseous membrane; intermuscular septum

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19
Q

Fibularis (Peroneus) brevis proximal attachment

A

Inferior two-thirds of lateral surface of fibula; fascia: intermuscular septum

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20
Q

Fibularis (Peroneus) brevis distal attachment

A

Dorsal surface of tuberosity on lateral side of base of fifth metatarsal bone posterior to peroneus tertius; descends posterior to lateral malleolus; superior to fibular (peroneal) trochlea

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21
Q

Fibularis (Peroneus) brevis innervation

A

Superficial fibular nerve

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22
Q

Fibularis (Peroneus) brevis action

A

aids eversion; limits inversion; weakly plantarflexes ankle

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23
Q

Fibularis (Peroneus) longus action

A

NWBing: Everts foot and weakly plantarflexes ankle; depresses 1st metatarsal
WBing: plantarflexes ankle/foot & supports arches; limits inversion

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24
Q

Fibularis (peroneus) Tertius innervation

A

Deep fibular nerve

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25
Q

Fibularis (peroneus) Tertius distal attachment

A

Dorsum of base of fifth (5) metatarsal bone

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26
Q

Extensor digitorum longus distal attachment

A

Middle and distal phalanges of lateral four digits (divides into 4 slips after passing under extensor retinaculum)

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27
Q

Fibularis (peroneus) Tertius proximal attachment

A

Inferior third of anterior surface of fibula and fascia: interosseous membrane, intermuscular septum

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28
Q

Fibularis (peroneus) Tertius action

A

Dorsiflexes foot (at ankle) and aids in foot eversion

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29
Q

Extensor digitorum longus innervation

A

Deep fibular nerve

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30
Q

Extensor digitorum longus action

A

Extends lateral four digits and dorsiflexes foot (at ankle)

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31
Q

Soleus proximal attachment

A

Posterior aspect of head of fibula; superior 1/4 of fibula; medial border of tibial soleal line; fascia: fibrous arch between tibia & fibula

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32
Q

Soleus distal attachment

A

Posterior surface of calcaneus via tendo calcaneus

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33
Q

Soleus innervation

A

Tibial nerve

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34
Q

Soleus action

A

Plantarflexes foot and steadies leg on foot slower contraction than gastrocnemius

35
Q

Plantaris proximal attachment

A

Inferior end of lateral supracondylar line of femur and fascia: oblique popliteal ligament

36
Q

Plantaris distal attachment

A

Posterior surface of calcaneus via tendon calcaneus (fused with medial achilles tendon)

37
Q

Plantaris innervation

A

Tibial nerve

38
Q

Plantaris action

A

Weakly assists in plantarflexion of foot and flexing knee joint

39
Q

Popliteus proximal attachment

A

Lateral surface of lateral condyle of femur and lateral meniscus; knee joint capsule

40
Q

Popliteus distal attachment

A

Posterior surface of tibia, superior to soleal line

41
Q

Popliteus innervation

A

Tibial nerve

42
Q

Popliteus action

A

With distal end is fixed, it weakly flexes knee; with distal end free, it unlocks knee by medially rotating leg ; retracts lateral meniscus during knee flexion; aids posterior stability of knee

43
Q

Flexor hallucis longus distal attachment

A

plantar surface of base of distal phalanx of great toe (hallux)

44
Q

Flexor hallucis longus proximal attachment

A

Inferior two-thirds of posterior surface of fibula and fascia: inferior part of interosseous membrane; intermuscular septum, fascia of tibialis posterior

45
Q

Flexor hallucis longus action

A

Flexes great toe at all joints and plantarflexes foot: supports longitudinal arch of foot; maintains pad of toe on ground

46
Q

Flexor hallucis longus innervation

A

Tibial nerve

47
Q

Flexor digitorum longus proximal attachment

A

Medial part of posterior surface of tibia, inferior to soleal line

48
Q

Flexor digitorum longus distal attachment

A

Bases of distal phalanges of lateral four digits

49
Q

Flexor digitorum longus innervation

A

Tibial nerve

50
Q

Flexor digitorum longus action

A

Flexes lateral four digits and plantarflexes foot; supports longitudinal arch of foot

51
Q

Tibialis posterior proximal attachment

A

Interosseous membrane, posterior surface of tibia inferior to soleal line, and posterior surface of fibula; fascia: intermuscular septum

52
Q

Tibialis posterior distal attachment

A

Tuberosity of navicular, medial & intermediate cuneiforms,cuboid and bases of second, third, and fourth metatarsal bones; tendon of flexor hallucis brevis (FHB)

53
Q

Tibialis posterior innervation

A

Tibial nerve

54
Q

Tibialis posterior action

A

Plantarflexes and inverts foot – Main invertor of foot; controls pronation

55
Q

Abductor hallucis proximal

A

medial process of tuber calcanei, flexor retinaculum, and plantar aponeurosis

56
Q

Abductor hallucis distal

A

medial side of base of PROXIMAL phalanx of great toe (hallux)

57
Q

Abductor Hallucis innervation

A

medial plantar nerve

58
Q

Abductor hallucis action

A

abducts and flexes great toe

59
Q

Abductor digiti minimi proximal

A

medial and lateral processes of tuber calcanei, plantar aponeurosis and intermuscular septa

60
Q

Abductor digiti minimi distal

A

lateral side of base of PROXIMAL phalanx of fifth digit

61
Q

Abductor digiti minimi innervation

A

Lateral plantar nerve

62
Q

Quadratus plantae proximal

A

medial surface and lateral margin of plantar surface of calcaneus (two heads separated by long plantar ligament)

63
Q

Quadratus plantae distal

A

posterolateral margin of tendon of flexor digitorum longus (FDL)

64
Q

Quadratus plantae innervation

A

Lateral plantar nerve

65
Q

Quadratus plantae action

A

assists flexor digitorum longus in flexing lateral four digits

66
Q

Adductor hallucis proximal

A

Oblique head: bases of metatarsals 2-4 Transverse head: plantar ligaments of metatarsophalangeal joints

67
Q

Adductor hallucis distal

A

Tendons of both heads: attached to lateral side of base of proximal phalanx of great toe (hallux)

68
Q

Adductor hallucis innervation

A

deep branch of lateral plantar nerve

69
Q

Adductor hallucis action

A

adducts great toe; assists in maintaining transverse arch of foot

70
Q

Flexor digiti minimi (brevis) proximal

A

base of fifth metatarsal bone

71
Q

Flexor digiti minimi (brevis) distal

A

base of proximal phalanx of fifth digit

72
Q

Flexor digiti minimi (brevis) innervation

A

Superficial branch of lateral plantar nerve

73
Q

Flexor digiti minimi (brevis) action

A

flexes proximal phalanx of fifth digit, thereby assisting with its flexion

74
Q

Gastrocnemius proximal attachment

A

Lateral head: lateral aspect of lateral femoral condyle (superior to lateral collateral ligament attachment, lateral supracondylar line, and knee joint capsule) Medial head: popliteal surface of femur (superior to medial condyle and knee joint capsule)

75
Q

Gastrocnemius distal attachment

A

Posterior surface of calcaneus via tendo calcaneus

76
Q

Gastrocnemius innervation

A

Tibial nerve

77
Q

Gastrocnemius action

A

Plantarflexes foot; flexes knee joint faster contraction than soleus; important in running & leaping

78
Q

Lumbricals proximal attachment

A

tendons of flexor digitorum longus

79
Q

Lumbricals distal attachment

A

medial sides of bases of proximal phalanges of lateral four digits and extensor expansions of tendons of extensor digitorum longus (EDL)

80
Q

Lumbricals innervation

A

Medial #2: medial plantar nerve

Lateral #3,4,5: lateral plantar nerve

81
Q

Lumbricals action

A

flex proximal phalanges and extend middle and distal phalanges of lateral four digits Think “hand puppet”

82
Q

Tibialis anterior action

A

Dorsiflexes and inverts foot (at ankle) In gait, decelerates foot from heel strike to foot flat

83
Q

Tibialis anterior innervation

A

Deep fibular nerve

83
Q

Abductor digiti minimi action

A

abducts and flexes fifth digit

Anatomy Muscle Cards (5 decks)

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