Posterior leg muscles Flashcards
Gastrocnemius lateral head proximal attachment
Lateral condyle of femur
Gastrocnemius lateral head distal attachment
Posterior surface of calcaneus via calcaneal tendon
Gastrocnemius lateral head nerve supply
tibial nerve
Gastrocnemius lateral head action
Plantarflex ankle joint
Gastrocnemius medial head proximal attachment
superior to medial condyle of femur
Gastrocnemius medial head distal attachment
Calcaneus via calcaneal tendon
Gastrocnemius medial head nerve supply
tibial nerve
Gastrocnemius medial head action
Plantarflex ankle
Soleus proximal attachment
Head of fibula and posterior surface of fibula/soleal line of of tibia
Soleus distal attachment
Posterior surface of calcaneus via calcaneal tendon
Soleus nerve supply
Tibial nerve
Soleus action
Plantarflexion of ankle
Plantaris proximal attachment
Lateral supracondylar line of femur
Plantaris distal attachment
Posterior surface of calcaneus via calcaneal tendon
Plantaris nerve supply
tibial nerve
Plantaris action
weak plantar flexion of ankle
Popliteus proximal attachment
Lateral condyle of femur/lateral meniscus
Popliteus distal attachment
Posterior surface of tibia, superior to solar line
Popliteus nerve supply
Tibial nerve
Popliteus action
Weak knee flexion, unlocks knee by externally rotating femur
Flexor digitorum longus proximal attachment
posterior surface of tibia, inferior to soleal line
Flexor digitorum longus distal attachment
distal phalanges of lateral 4 digits
Flexor digitorum longus nerve supply
Tibial nerve
Flexor digitorum longus action
Flexion of lateral 4 digits and plantarflex ankle
Flexor hallucis longus proximal attachment
posterior surface of fibula and interosseous membrane
Flexor hallucis longus distal attachment
plantar surface of distal phalanx of hallux
Flexor hallucis longus nerve supply
Tibial nerve
Flexor hallucis longue action
Flex great toe, weak plantar flexion
Tibialis posterior proximal attachment
posterior surface of tibia, inferior to soleal line
Tibialis posterior distal attachment
Tubersoity of navicular, cuneiforms, cuboid and sustentaculum tali of calcaneus
Tibialis posterior nerve supply
Tibial nerve
Tibialis posterior action
Plantarflex ankle joint, invert subtalar joint