Leg Muscles - Origins and Insertions

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24 Terms

1
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Tibialis anterior - Origin

lateral tibia condyle

superior 2/3 of the lateral surface of the tibial shaft

Interosseous membrane

<p>lateral tibia condyle </p><p>superior 2/3 of the lateral surface of the tibial shaft</p><p>Interosseous membrane</p>
2
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Tibialias anterior - Insertion

medial cuneiform

base of 1st metatarsal

<p>medial cuneiform</p><p>base of 1st metatarsal</p>
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Tibialis anterior - Movements

dorsiflexion

foot inversion

<p>dorsiflexion</p><p>foot inversion</p>
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Extensor digitorum longus - Origin

lateral condyle of tibia

upper ¾ of the anterior surface of fibula

Interosseous membrane

<p>lateral condyle of tibia</p><p>upper ¾ of the anterior surface of fibula</p><p>Interosseous membrane</p>
5
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Extensor digitorum longus - Insertion

middle and distal phalanges of digits 2-5

via dorsal digital expansions

<p>middle and distal phalanges of digits 2-5</p><p>via dorsal digital expansions</p>
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Extensor digitorum longus - Movements

extension of toes 2-5

dorsiflexion

<p>extension of toes 2-5</p><p>dorsiflexion</p>
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Fibularis longus - Origin

upper third of fibula

<p>upper third of fibula</p>
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Fibularis longus - Insertion

medial cuneiform

base of 1st metatarsal

<p>medial cuneiform</p><p>base of 1st metatarsal</p>
9
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Fibularis longus - Movements

eversion

assist in plantar flexion

support of arches

<p>eversion</p><p>assist in plantar flexion</p><p>support of arches</p>
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Extensor hallucis longus - Origin

middle third of anterior surface of fibula

Interosseus membrane

<p>middle third of anterior surface of fibula</p><p>Interosseus membrane</p>
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Extensor hallucis longus - Insertion

distal phalanx of big toe

<p>distal phalanx of big toe</p>
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Extensor hallucis longus - Movements

extension of big toe

inversion of the foot

dorsiflexion

<p>extension of big toe</p><p>inversion of the foot</p><p>dorsiflexion</p>
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Flexor digitorum longus - Origin

medial posterior surface of tibia

<p>medial posterior surface of tibia</p>
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<p>Flexor digitorum longus - Insertion</p>

Flexor digitorum longus - Insertion

distal phalanges of digits 2-5

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Flexor digitorum longus - Movements

flexion of distal interphalangeal joints of toes 2-5

plantarflexion

inversion

<p>flexion of distal interphalangeal joints of toes 2-5</p><p>plantarflexion</p><p>inversion</p>
16
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Gastrocnemius - Origin

Lateral Head: lateral condyle of femur

Medial Head: medial condyle

<p>Lateral Head: lateral condyle of femur</p><p>Medial Head: medial condyle</p>
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Gastrocnemius - Insertion

calcaneus

<p>calcaneus</p>
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Gastrocnemius - Movements

plantarflexion

knee flexion

<p>plantarflexion</p><p>knee flexion</p>
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Soleus - Origin

soleal line and middle third of medial border of tibia

Interosseous membrane

posterior aspect of the head, neck, and proximal fourth of fibula

<p>soleal line and middle third of medial border of tibia</p><p>Interosseous membrane</p><p>posterior aspect of the head, neck, and proximal fourth of fibula</p>
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Soleus - Insertion

calcaneus

<p>calcaneus</p>
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Soleus - Movements

plantarflexion

<p>plantarflexion</p>
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Plantaris - Origin

inferior end of the lateral supracondylar line of the femur

<p>inferior end of the lateral supracondylar line of the femur</p>
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Plantaris - Insertion

calcaneus

<p>calcaneus</p>
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Plantaris - Movements

plantarflexion

weak knee flexion

<p>plantarflexion</p><p>weak knee flexion</p>