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Clinical Anatomy I > Leg > Flashcards

Leg Flashcards

1
Q

Explain organization of crural fascia

A

Anterior crural intermuscular septum
Posterior crural intermuscular septum
Transverse intermuscular septum

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2
Q

Superior extensor retinaculum attachments

A

extends from distal tibia to distal fibula

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3
Q

Inferior extensor retinaculum attachments

A

extends from the calcaneus to the navicular and medial malleolus

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4
Q

Superior fibular retinaculum attachments

A

extends from the lateral malleolus to the calcaneus

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5
Q

Inferior fibular retinaculum attachments

A

extends from the inferior extensor retinaculum to the calcaneus

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6
Q

Flexor retinaculum attachments

A

extends from the medial malleolus to the calcaneus, forming tarsal tunnel

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7
Q

Anterior compartment of the leg contents

A

Tibialis anterior
Extensor hallucis longus
Extensor digitorum longus
Fibularis tertius

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8
Q

Anterior compartment of the leg actions

A

Ankle dorsiflexion
Inversion
Toe extension
Ankle eversion if peroneus tertius could be isolated

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9
Q

Anterior compartment of the leg innervation

A

deep fibular nerve

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10
Q

Anterior compartment of the leg blood supply

A

anterior tibial artery

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11
Q

Lateral compartment of the leg contents

A

Fibularis longus
Fibularis brevis

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12
Q

Lateral compartment of the leg actions

A

Eversion
Plantar flexion

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13
Q

Lateral compartment of the leg innervation

A

Superficial fibular nerve

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14
Q

Lateral compartment of the leg blood supply

A

Fibular artery

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15
Q

Superficial posterior compartment of the leg components

A

Gastrocnemius
Soleus
Plantaris

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16
Q

Superficial posterior compartment of the leg actions

A

Ankle plantar flexion
Knee flexion

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17
Q

Superficial posterior compartment of the leg innervation

A

Tibial nerve

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18
Q

Superficial posterior compartment of the leg blood supply

A

Posterior tibial artery

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19
Q

Deep posterior compartment of the leg components

A

Popliteus
Flexor digitorum longus
Flexor hallucis longus
Tibialis posterior

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20
Q

Deep posterior compartment of the leg actions

A

Ankle plantar flexion
Inversion
Toe flexion
Knee flexion

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21
Q

Deep posterior compartment of the leg innervations

A

Tibial nerve

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22
Q

Deep posterior compartment of the leg blood supply

A

Posterior tibial artery

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23
Q

Extensor digitorum longus attachments

A

from… the lateral tibial condyle, proximal 3/4th of the fibula and crural interosseous membrane
to… the dorsal digital expansions of toes 2-5

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24
Q

Extensor digitorum longus actions

A

Dorsiflexes ankle
Extends digits 2-5 (IP & MP)

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25
Q

Extensor digitorum longus innervation

A

Deep fibular nerve (L4-5-S1)

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26
Q

Extensor hallucis longus attachments

A

from… the middle 1/2 of the fibular surface & crural interosseous membrane
to… the distal phalangeal base of the 1st toe

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27
Q

Extensor hallucis longus actions

A

Dorsiflexes ankle
Extends great toe (MP & IP)

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28
Q

Extensor hallucis longus innervation

A

deep fibular nerve (L4-5-S1)

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29
Q

Fibularis tertius attachments

A

from… the distal fibula and crural interosseous membrane
to… the base of the 5th metatarsal

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30
Q

Fibularis tertius actions

A

Dorsiflexes ankle
Everts foot

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31
Q

Fibularis tertius innervation

A

deep fibular nerve (L4-5-S1)

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32
Q

Tibialis anterior attachments

A

from… the lateral condyle and proximal 2/3rds of the tibia’s lateral surface & crural interosseous membrane
to… the medial cuneiform & adjacent 1st metatarsal

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33
Q

Tibialis anterior actions

A

Dorsiflexes ankle
Inverts foot

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34
Q

Tibialis anterior innervation

A

deep fibular nerve (L4-5-S1)

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35
Q

Fibularis longus attachments

A

from… the head & proximal 2/3rds of the fibula
to… the lateral aspects of the 1st metatarsal & adjacent medial cuneiform

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36
Q

Fibularis longus actions

A

Everts foot
Plantar flexes ankle
Depresses 1st metatarsal head

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37
Q

Fibularis longus innervation

A

superficial fibular nerve (L4-5-S1)

38
Q

Fibularis brevis attachments

A

from… the distal 2/3rds of the fibula
to… the lateral base of the 5th metatarsal

39
Q

Fibularis brevis actions

A

Everts foot
Plantar flexes ankle

40
Q

Fibularis brevis innervation

A

Superficial fibular nerve (L4-5-S1)

41
Q

Flexor digitorum longus attachments

A

from… the posterior tibia distal to the soleal line
to… the plantar surface of the distal phalangeal bases

42
Q

Flexor digitorum longus actions

A

Plantar flexes ankle
Flexes digits 2-5 (MP & IP)

43
Q

Flexor digitorum longus innervation

A

tibial nerve (L5-S1-2)

44
Q

Flexor hallucis longus attachments

A

from… the distal 2/3rds of the posterior fibular surface & crural interosseous membrane
to… the plantar aspect of the distal phalangeal base of the 1st toe

45
Q

Flexor hallucis longus actions

A

Plantar flexes ankle
Flexes great toe (MP & IP)

46
Q

Flexor hallucis longus innervation

A

tibial nerve (L5-S1-2)

47
Q

Gastrocnemius attachments

A

from… the posterior aspect of the femoral condyles and joint capsule
to… the posterior calcaneal surface

48
Q

Gastrocnemius actions

A

Flexes knee
Plantar flexes ankle

49
Q

Gastrocnemius innervation

A

tibial nerve (S1-2)

50
Q

Plantaris attachments

A

from… the lateral supracondylar line
to… the posterior calcaneal surface

51
Q

Plantaris actions

A

Flexes knee
Plantar flexes ankle

52
Q

Plantaris innervation

A

tibial nerve (L4-5-S1)

53
Q

Popliteus attachments

A

from… the lateral femoral condyle and oblique popliteal ligament
to… the soleal line of the tibia

54
Q

Popliteus actions

A

Non-weight bearing: Medial rotation of tibia and knee flexion
Weight bearing: lateral rotation of femur and knee flexion (it unlocks the knee from extension into early flexion)

55
Q

Popliteus innervation

A

tibial nerve (L4-5-S1)

56
Q

Soleus attachments

A

from… the posterior aspect of the head & proximal 1/4th of the fibula & tibial soleal line
to… the posterior calcaneal surface

57
Q

Soleus actions

A

Plantar flexes the foot at the ankle joint

58
Q

Soleus innervation

A

tibial nerve (L5-S1-2)

59
Q

Tibialis posterior attachments

A

from… the crural interosseous membrane, lateral tibial surface & medial fibular surface
to… the navicular, medial & intermediate cuneiforms and bases of metatarsals 2-4

60
Q

Tibialis posterior actions

A

Inverts foot
Plantar flexes ankle

61
Q

Tibialis posterior innervation

A

tibial nerve (L4-5-S1)

62
Q

Sciatic nerve - Tibial division - muscular branches axon function

A

sensory
postganglionic sympathetic
& motor innervation of the semimembranosus, semitendinosus, biceps femoris (long head) & adductor magnus m.

63
Q

Sural n axon functions

A

Sensory
Postganglionic sympathetic
- innervation of the skin overlying the lateral aspect of the leg & foot

64
Q

Sciatic nerve - Tibial nerve - Muscular branches axon functions

A

Sensory
Postganglionic sympathetic
Motor
- innervation of gastrocnemius, soleus, plantaris, popliteus, tibialis posterior, flexor digitorum longus, & flexor hallucis longus muscles

65
Q

Medial plantar nerve axon functions

A

Sensory
Postganglionic sympathetic
Motor
- innervation of the medial muscles of the plantar surface of the foot

66
Q

Lateral plantar nerve axon functions

A

Sensory
Postganglionic sympathetic
Motor
- innervation of the lateral muscles of the plantar surface of the foot

67
Q

Sciatic nerve - Fibular division - Muscular branch to short head of biceps femoris axon function

A

sensory
postganglionic sympathetic
& motor innervation of the short head of the biceps femoris

68
Q

Lateral sural nerve axon functions

A

Sensory
Postganglionic sympathetic
- innervation of the skin overlying the lateral aspect of the leg

69
Q

Deep fibular nerve axon functions

A

Sensory
Postganglionic sympathetic
Motor
- innervation of the tibialis anterior, extensor hallucis longus, extensor digitorum longus, & fibularis tertius muscles

70
Q

Superficial fibular nerve axon functions

A

Sensory
Postganglionic sympathetic
Motor
- innervation of the fibularis longus & brevis muscles

71
Q

dermatomes

72
Q

Fibrous capsule of the knee attachments

A

from the margins of the femoral condyles to the margins of the tibial condyles

73
Q

Tibial (Medial) collateral ligament attachments

A

from the medial epicondyle of the femur to the medial condyle & shaft of the tibia

74
Q

Tibial (Medial) collateral ligament functions

A

stabilizes the medial aspect of the joint (prevents abduction of the tibia)

75
Q

Fibular (Lateral) collateral ligament attachments

A

from the lateral epicondyle of the femur to the head of the fibula

76
Q

Fibular (Lateral) collateral ligament functions

A

stabilizes the lateral aspect of the joint (prevents adduction of the tibia)

77
Q

Anterior cruciate ligament attachments

A

From the medial part of the anterior intercondylar area of the tibia to the posterior part of the medial surface of the lateral condyle of the femur

78
Q

Anterior cruciate ligament functions

A

prevents posterior displacement of the femur on the tibia, anterior tibia displacement, and hyperextension of the knnee

79
Q

Posterior cruciate ligament attachments

A

from the posterior intercondylar area of the tibia to the lateral surface of the medial condyle of the femur

80
Q

Posterior cruciate ligament functions

A

prevents the anterior displacement of the femur and posterior displacement of the tibia

81
Q

Medial meniscus attachments

A

anterior & posterior regions of the intercondylar area of the tibia & fibrous capsule at the tibial (medial) collateral ligament

82
Q

Lateral meniscus attachments

A

anterior & posterior regions of the intercondylar area of the tibia

83
Q

Patellar ligament attachments

A

from the apex of the patella to the tibial tuberosity

84
Q

Patellar ligament functions

A

resists knee flexion

85
Q

Crural interosseous membrane attachments

A

from the interosseous border of the tibia to the interosseous border of the fibula

86
Q

joint capsules

87
Q

Distal tibiofibular synovial joint classification

A

syndesmosis

88
Q

Talocrural synovial joint classification

A

hinge (ginglymus)

89
Q

Subtalar synovial joint classification

90
Q

Tarsometatarsal synovial joint classification

91
Q

Metatarsophalangeal synovial joint classification

92
Q

Interphalangeal synovial joint classification

A

hinge (ginglymus)

Clinical Anatomy I (44 decks)

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