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Origin Superior lateral quadrant of the ischial tuberosity
Insertion Posterior surface of the medial tibial condyle
Action Extends the thigh, flexes the knee, and also rotates the tibia medially, especially when the knee is flexed
Innervation Tibial nerve (L5, S1, S2)
Arterial Supply Perforating branches of profunda femoris artery, inferior gluteal artery, and the superior muscular branches of popliteal artery





 

 

 

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