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 (femur)

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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

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A

flexion of knee (weak)
unlocks knee

Q

flexor digitorum longus origin

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A

posterior tibia

Q

flexor digitorum longus insertion

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A

base distal phalanx 2-5

Q

flexor digitorum longus innervation

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A

tibial nerve

Q

flexor digitorum longus actions

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A

flex digits 2-5
plantar flexion

Q

tibialis posterior origin

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A

posterior tibia, posterior fibula, interosseus membrane

Q

tibialis posterior insertion

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A

navicular/cuneiforms/base metatarsals 2-4

Q

tibialis posterior innervation

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A

tibial nerve

Q

tibialis posterior actions

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A

inversion
plantar flexion

flexor hallucis longus origin

inferior fibula, interesseus membrane

flexor hallucis longus insertion

distal phalanx of hallux

flexor hallucis longus innervation

tibial nerve

flexor hallucis longus actions

flex hallux plantar flexion

superior flexors of posterior compartment

gastrocnemius soleus plantaris

deep muscles of posterior compartment

popliteus flexor digitorum longus tibialis posterior flexor hallucis