Leg Flashcards
origin gastrocnemius
lateral: lateral aspect of lateral condyle of femur
medial: popliteal surface above medial condyle of femur
origin soleus
posterior aspect of head of fibula, proximal 1/4 surface of fibula, soleal line of tibia
origin plantaris
inferior end of lateral supracondylar line of femur and oblique popliteal ligament
origin popliteus
lateral aspect of lateral condyle, lateral meniscus
origin flexor digitorum longus
medial part of posterior tibia inferior to soleal line
origin tibialis posterior
posterior tibia below soleal line, interosseous membrane, proximal half of posterior fibula
origin flexor hallucis longus
distal 2/3 posterior fibula and interosseous membrane
insertion gastrocnemius, soleus, plantaris
calcaneal tendon
insertion insertion popliteus
posterior tibia superior to soleal line
insertion flexor digitorum longus
plantar bases of distal phalanges of lateral four digits
insertion tibialis posterior
tuberosity of navicular bone, all cuneiforms, cuboid, and bases of 2-4th metatarsals
insertion flexor hallucis longus
base of distal phalanx of great toe
action gastrocnemius
plantarflexes foot, assists in flexion of knee, raises heel during walking
action soleus
plantarflexion, stabilizes leg over foot
action plantaris
weakly assists gastrocnemius, proprioceptive function
action popliteus
weakly flexes knee and unlocks it by rotating femur on fixed tibia
flexor digitorum longus action
flexes lateral four digits and plantarflexes, supports longitudinal arches of foot
action tibialis posterior
plantarflexes and inverts foot
action flexor hallucis longus
flexes all joints of great toe, weak plantarflexion
inn. all of posterior leg
tibial n
inn. fibularis longus and brevis
superficial fibular n
origin fibularis longus
head and proximal 2/3 of lateral fibula
insertion fibularis longus
plantar base of 1st metatarsal and medial cuneiform
action fibularis longus and brevis
everts and weakly plantarflexes foot
