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Muscles > Ankle & Foot > Flashcards

Ankle & Foot Flashcards

1
Q

evertors of the foot (3)

A

peroneus tertius, peroneus longus, peroneus brevis

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2
Q

peroneus longus

A

O: head & lateral proximal 2/3 of tibia
I: plantar surface of base of 1st metatarsal & of medial cuneiform
A: eversion of foot; assist w/ ankle plantarflexion

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3
Q

tibialis posterior

A

O: posterior tibia, fibula & interosseous membrane
I: plantar surface of navicular, cuboid & cuneiforms; bases of metatarsals 2,3,4
A: inversion of foot; plantarflexion

*wraps medially

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4
Q

soleus

A

O: soleal line of tibia; posterior head & posterior proximal shaft of fibula
I: calcaneus via Achilles tendon
A: strongest plantarflexor

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5
Q

tibialis anterior

A

O: lateral proximal shaft & lateral condyle of tibia & interosseous membrane
I: base of 1st metatarsal & medial cuneiform on plantar surfaces
A: dorsiflexion of ankle; inversion of foot

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6
Q

flexor halluces longus

A

O: posterior fibula
I: plantar surface of distal phalanx of great toe
A: flexion of IP joint in great toe; assist w/ plantarflexion

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7
Q

extensor digitorum longus

A

O: lateral tibial condyle; proximal 2/3 of anterior shaft of fibula; interosseous membrane
I: middle & distal phalanges of toes 2-5
A: extension of toes 2-5; assist w/ dorsiflexion of ankle

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8
Q

extensor hallucis longus

A

O: anterior shaft of fibula & interosseous membrane
I: distal phalanx of great toe; dorsal surface
A: extension of great toe @ IP joint; assist w/ ankle dorsiflexion

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9
Q

peroneus brevis

A

O: lower 2/3 of lateral shaft of fibula
I: tuberosity of 5th metatarsal
A: eversion of foot; assist w/ plantarflexion

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10
Q

peroneus tertius

A

O: distal anterior fibula
I: dorsum of base of 5th metatarsal
A: eversion of foot; assist w/ ankle dorsiflexion

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11
Q

invertors of the foot (2)

A

tibialis posterior, tibialis anterior

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12
Q

plantarflexors of the ankle (8)

A

gastrocnemius, soleus, plantaris, peroneus brevis, peroneus longus, tibialis posterior, flexor digitorum longus, flexor hallucis longus

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13
Q

dorsiflexors of the ankle (4)

A

tibialis anterior, extensor hallucis longus, extensor digitorum longus, peroneus tertius

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14
Q

flexor digitorum longus

A

O: posterior surface of tibia
I: plantar surface of distal phalanges of toes 2-5
A: flexion of DIP joints of toes 2-5; assist w/ ankle plantarflexion

*wraps medially

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15
Q

plantaris

A

O: lateral epicondyle of posterior femur
I: calcaneus via Achilles tendon
A: ankle plantarflexion & knee flexion

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16
Q

gastrocnemius

A

O: medial & lateral superior lip of femoral condyles
I: calcaneus via Achilles tendon
A: ankle plantarflexion; weak knee flexor

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