Posterior Leg Muscles - Exam 3 Flashcards by Hannah Duncan

Q

gastrocnemius origin

A

lateral condyle femur, medial condyle femur

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Q

gastrocnemius insertion

A

calcaneus (via calcaneal tendon)

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Q

gastrocnemius innervation

A

tibial nerve

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Q

gastrocnemius action

A

plantar flexion

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Q

soleus origin

A

fibular head, soleal line tibia, medial tibia

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Q

soleus insertion

A

calcaneus (via calcaneal tendon)

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Q

soleus innervation

A

tibial nerve

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Q

soleus action

A

plantar flexion

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Q

plantaris origin

A

lateral supracondyler line

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Q

plantaris insertion

A

calcaneus (via calcaneal tendon)

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Q

plantaris innervation

A

tibial nerve

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Q

plantaris actions

A

proprioception
plantar flexion (weak)

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Q

popliteus origin

A

lateral condyle of femur

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Q

popliteus insertion

A

posterior tibia

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Q

popliteus innervation

A

tibial nerve

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Q

popliteus actions

A

flexion of knee (weak)
unlocks knee

Q

flexor digitorum longus origin

A

posterior tibia

Q

flexor digitorum longus insertion

A

base distal phalanx 2-5

Q

flexor digitorum longus innervation

A

tibial nerve

Q

flexor digitorum longus actions

A

flex digits 2-5
plantar flexion

Q

tibialis posterior origin

A

posterior tibia, posterior fibula, interosseus membrane

Q

tibialis posterior insertion

A

navicular/cuneiforms/base metatarsals 2-4

Q

tibialis posterior innervation

A

tibial nerve

Q

tibialis posterior actions

A

inversion
plantar flexion

Q

flexor hallucis longus origin

A

inferior fibula, interesseus membrane

Q

flexor hallucis longus insertion

A

distal phalanx of hallux

Q

flexor hallucis longus innervation

A

tibial nerve

Q

flexor hallucis longus actions

A

flex hallux
plantar flexion