deep compartment posterior leg muscles Flashcards
what are the four main deep compartment posterior leg muscles ?
popliteus
tibialis posterior
flexor digitorum longus
flexor hallucis longus
what are the attachments of the popliteus ?
origin - lateral condyle of femur and lateral meniscus
insertion - proximal tibia above the origin of the soleus muscle
where is the popliteus located ?
lies behind the knee joint forming base of popliteal fossa
what are the actions of the popliteus ?
lateral rotation of femur relative to the tibia
what is the innervation of the popliteus ?
tibial nerve
what is the blood supply of the popliteus ?
popliteal artery
what are the attachments of the tibialis posterior ?
origin - posterior surface and interosseous membrane go the tibia and fibula
insertion - plantar surfaces of the medial tarsal bones
where is the tibialis posterior located ?
between the flexor digiorium longus and flexor hallucis longus muscles
what are the actions of the tibialis posterior ?
inversion and plantar flexion of the foot
what is the innervation of the tibialis posterior ?
tibial nerve
what is the blood supply to the tibialis posterior ?
posterior tibial artery
what are the attachments for the flexor digitorum longus ?
origin - medial surface of the tibia
insertion - plantar surfaces of the lateral four digits
where is the flexor digitorum longus located ?
located medially within the deep compartment of the leg
what are the actions of the flexor digitorum longus ?
flexion of the lateral four toes
what is the innervation of the flexor digitorum longus ?
tibial nerve
what is the flexor digitorum longus bloods supply ?
posterior tibial artery
what are the attachments of the flexor hallucis longus ?
origin - medial surface of the tibia
insertion - plantar surfaces of the lateral four digits
where is the flexor hallucis longus located ?
laterally within the deep compartment of the leg
what are the actions of the flexor hallucis longus ?
flexion of lateral four toes
what is the innervation of the flexor hallucis longus ?
tibial nerve
what is the blood supply to the flexor hallucis longus ?
posterior tibial artery