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Most anterior compartment muscles of the hip and thigh flex the
femur at the hip and extend the leg at the knee
The ball-and-socket hip joint permits
flexion, extension, abduction, adduction, circumduction, and rotation
Thigh extension is primarily effected by the
hamstring muscles (biceps femoris, semitendinosus, and semimembranosus)
Thigh adduction is the role of five adductor muscles
(adductor magnus, adductor longus, and adductor brevis; the pectineus, and the gracilis)
Muscles of the Posterior Compartment include
the gastrocnemius, soleus, tibialis posterior, flexor digitorum longus
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