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Muscle Cards > Lower Leg and Foot > Flashcards

Lower Leg and Foot Flashcards

1
Q

Tibialis Anterior

A

O: lateral condyle of tibia
I: medial cuneiform, base of 1st metatarsal bone
N: deep fibular nerve (L4-S1)
A: DF and inverts ankle

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2
Q

Extensor Hallicus Longus

A

O: anterior surface of fibula
I: base of distal phalanx of great toe
N: deep fibular (L4-S1)
A: extends great toe, DF

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3
Q

Extensor Digitorum Longus

A

O: lateral condyle of tibia; anterior surface of fibula
I: middle/distal phalanges of 4 lateral digits
N: deep fibular (L4-S1)
A: extends lateral 4 toes; DF`

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4
Q

Fibularis Tertius

A

O: inferior surface of fibula
I: dorsum of base of 5th metatarsal bone
N: deep fibular (L4-S1)
A: DF; aids in foot eversion

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5
Q

Fibularis Longus

A

O: head/superior surface of fibula; lateral tibial condyle
I: plantar surface of base of 1st metatarsal bone and medial cuneiform bone
N: superficial fibular nerve (L5-S2)
A: eversion, weak PF; depresses 1st metatarsal

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6
Q

Fibularis Brevis

A

O: inferior surface of fibula
I: tuberosity on lateral side of base of 5th metatarsal bone
N: superficial fibular nerve (L5-S2)
A: eversion; weak PF

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7
Q

Gastrocnemius

A

O: lateral femoral condyle and popliteal surface of femur
I: posterior surface of calcaneus
N: tibial nerve (L4-S3)
A: PF ankle, flexes knee joint

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8
Q

Soleus

A

O: posterior head of fibula; medial border of soleal line
I: calcaneus
N: tibial nerve (L4-S3)
A: PF

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9
Q

Popliteus

A

O: lateral condyle of femur
I: posterior surface of tibia
N: tibial nerve
A: unlocks knee by IR leg

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10
Q

Tibialis Posterior

A

O: posterior surface of tibia and fibula
I: navicular, med/intermediate cuneiforms, cuboid, base of 2-4 metatarsal bones, tendon of FHB
N: tibial nerve (L4-S3)
A: PF, inverts foot (controls pronation)

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11
Q

Flexor Digitorum Longus

A

O: posterior surface of tibia
I: bases of distal phalanges of lateral 4 digits
N: tibial nerve
A: flexes toes; PF ankle; supports longitudinal arch

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12
Q

Flexor Hallicus Longus

A

O: posterior surface of fibula
I: plantar surface of base of distal phalanx of great toe
N: tibial nerve
A: flexes great toe, PF foot; supports longitudinal arch

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13
Q

Abductor Hallicus

A

O: medial process of tuber calcanel (calcaneus)
I: medial side of base of proximal phalanx of great toe
N: medial plantar nerve
A: abducts / flexes great toe

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14
Q

Flexor Digitorum Brevis

A

O: medial process of tuber calcanel (calcaneus)
I: both sides of middle phalanges of lateral 4 digits
N: medial plantar nerve
A: flexes lateral 4 toes

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15
Q

Abductor Digiti Minimi

A

O: medial process of tuber calcanel
I: lateral side of base of proximal phalanx of 5th digit
N: lateral plantar nerve
A: abducts and flexes 5th digit

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16
Q

Quadratus Plantae

A

O: medial margin of plantar surface of calcaneus
I: margin of tendon of flexor digitorum longus
N: lateral plantar nerve
A: assists FDL in flexing lateral 4 digits

17
Q

Lumbricals

A

O: tendon of FDL
I: medial bases of proximal phalanges of lateral 4 digits and extensor expansion of tendons of FDL
N: medial 2 - medial plantar; lateral 3,4,5 - lateral plantar
A: flex MTP and extends IPs

18
Q

Flexor Hallicus Brevis

A

O: plantar surface of cuboid and lateral cuneiform bones
I: both sides of base of proximal phalanx of great toe
N: medial plantar nerve
A: flexes proximal phalanx of great toe

19
Q

Adductor Hallicus

A

O: bases of metatarsals 2-4; plantar ligaments of MTP joints
I: lateral side of base of proximal phalanx of great toe
N: deep lateral plantar nerve
A: adducts great toe

20
Q

Flexor Digiti Minimi Brevis

A

O: base of 5th metatarsal bone
I: base of proximal phalanx of 5th digit
N: superficial lateral plantar nerve
A: flexes proximal phalanx of 5th digit

21
Q

Dorsal Interossei

A

O: adjacent sides of metatarsal bones 1-5
I: proximal phalanx
N: lateral plantar nerve
A: abducts digits 2-4 and flexes MTP joints

22
Q

Plantar Interossei

A

O: bases and medial sides of metatarsal bone 3-5
I: medial sides of bases of proximal phalanges of digits 3-5
N: lateral plantar nerve
A: adducts digits (3-5) and flexes MTP joints

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