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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
Fibularis (peroneus) Tertius distal attachment
Dorsum of base of fifth (5) metatarsal bone
26
Extensor digitorum longus distal attachment
Middle and distal phalanges of lateral four digits (divides into 4 slips after passing under extensor retinaculum)
27
Fibularis (peroneus) Tertius proximal attachment
Inferior third of anterior surface of fibula and fascia: interosseous membrane, intermuscular septum
28
Fibularis (peroneus) Tertius action
Dorsiflexes foot (at ankle) and aids in foot eversion
29
Extensor digitorum longus innervation
Deep fibular nerve
30
Extensor digitorum longus action
Extends lateral four digits and dorsiflexes foot (at ankle)
31
Soleus proximal attachment
Posterior aspect of head of fibula; superior 1/4 of fibula; medial border of tibial soleal line; fascia: fibrous arch between tibia & fibula
32
Soleus distal attachment
Posterior surface of calcaneus via tendo calcaneus
33
Soleus innervation
Tibial nerve
34
Soleus action
Plantarflexes foot and steadies leg on foot slower contraction than gastrocnemius
35
Plantaris proximal attachment
Inferior end of lateral supracondylar line of femur and fascia: oblique popliteal ligament
36
Plantaris distal attachment
Posterior surface of calcaneus via tendon calcaneus (fused with medial achilles tendon)
37
Plantaris innervation
Tibial nerve
38
Plantaris action
Weakly assists in plantarflexion of foot and flexing knee joint
39
Popliteus proximal attachment
Lateral surface of lateral condyle of femur and lateral meniscus; knee joint capsule
40
Popliteus distal attachment
Posterior surface of tibia, superior to soleal line
41
Popliteus innervation
Tibial nerve
42
Popliteus action
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
Flexor hallucis longus distal attachment
plantar surface of base of distal phalanx of great toe (hallux)
44
Flexor hallucis longus proximal attachment
Inferior two-thirds of posterior surface of fibula and fascia: inferior part of interosseous membrane; intermuscular septum, fascia of tibialis posterior
45
Flexor hallucis longus action
Flexes great toe at all joints and plantarflexes foot: supports longitudinal arch of foot; maintains pad of toe on ground
46
Flexor hallucis longus innervation
Tibial nerve
47
Flexor digitorum longus proximal attachment
Medial part of posterior surface of tibia, inferior to soleal line
48
Flexor digitorum longus distal attachment
Bases of distal phalanges of lateral four digits
49
Flexor digitorum longus innervation
Tibial nerve
50
Flexor digitorum longus action
Flexes lateral four digits and plantarflexes foot; supports longitudinal arch of foot
51
Tibialis posterior proximal attachment
Interosseous membrane, posterior surface of tibia inferior to soleal line, and posterior surface of fibula; fascia: intermuscular septum
52
Tibialis posterior distal attachment
Tuberosity of navicular, medial & intermediate cuneiforms,cuboid and bases of second, third, and fourth metatarsal bones; tendon of flexor hallucis brevis (FHB)
53
Tibialis posterior innervation
Tibial nerve
54
Tibialis posterior action
Plantarflexes and inverts foot -- Main invertor of foot; controls pronation
55
Abductor hallucis proximal
medial process of tuber calcanei, flexor retinaculum, and plantar aponeurosis
56
Abductor hallucis distal
medial side of base of PROXIMAL phalanx of great toe (hallux)
57
Abductor Hallucis innervation
medial plantar nerve
58
Abductor hallucis action
abducts and flexes great toe
59
Abductor digiti minimi proximal
medial and lateral processes of tuber calcanei, plantar aponeurosis and intermuscular septa
60
Abductor digiti minimi distal
lateral side of base of PROXIMAL phalanx of fifth digit
61
Abductor digiti minimi innervation
Lateral plantar nerve
62
Quadratus plantae proximal
medial surface and lateral margin of plantar surface of calcaneus (two heads separated by long plantar ligament)
63
Quadratus plantae distal
posterolateral margin of tendon of flexor digitorum longus (FDL)
64
Quadratus plantae innervation
Lateral plantar nerve
65
Quadratus plantae action
assists flexor digitorum longus in flexing lateral four digits
66
Adductor hallucis proximal
Oblique head: bases of metatarsals 2-4 Transverse head: plantar ligaments of metatarsophalangeal joints
67
Adductor hallucis distal
Tendons of both heads: attached to lateral side of base of proximal phalanx of great toe (hallux)
68
Adductor hallucis innervation
deep branch of lateral plantar nerve
69
Adductor hallucis action
adducts great toe; assists in maintaining transverse arch of foot
70
Flexor digiti minimi (brevis) proximal
base of fifth metatarsal bone
71
Flexor digiti minimi (brevis) distal
base of proximal phalanx of fifth digit
72
Flexor digiti minimi (brevis) innervation
Superficial branch of lateral plantar nerve
73
Flexor digiti minimi (brevis) action
flexes proximal phalanx of fifth digit, thereby assisting with its flexion
74
Gastrocnemius proximal attachment
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
Gastrocnemius distal attachment
Posterior surface of calcaneus via tendo calcaneus
76
Gastrocnemius innervation
Tibial nerve
77
Gastrocnemius action
Plantarflexes foot; flexes knee joint faster contraction than soleus; important in running & leaping
78
Lumbricals proximal attachment
tendons of flexor digitorum longus
79
Lumbricals distal attachment
medial sides of bases of proximal phalanges of lateral four digits and extensor expansions of tendons of extensor digitorum longus (EDL)
80
Lumbricals innervation
Medial #2: medial plantar nerve | Lateral #3,4,5: lateral plantar nerve
81
Lumbricals action
flex proximal phalanges and extend middle and distal phalanges of lateral four digits Think “hand puppet”
82
Tibialis anterior action
Dorsiflexes and inverts foot (at ankle) In gait, decelerates foot from heel strike to foot flat
83
Tibialis anterior innervation
Deep fibular nerve
83
Abductor digiti minimi action
abducts and flexes fifth digit

Anatomy Muscle Cards (5 decks)

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