Semimembranosus: Medial Hamstrings
Origin: Ischial Tuberosity.
Insertion: Medial Condyle of Tibia.
Innervation: Tibial Nerve: Branch of Sciatic Nerve. (L5, S1 & S2)
Concentric Actions:
1) Hip extension.
2) Knee flexion.
3) Medial rotation of tibia when knee is flexed.
4) Medial rotation of thigh when hip is extended.
Dr Donald A Ozello DC of Championship Chiropractic in Las Vegas, NV
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Two Minutes of Anatomy: Semimembranosus
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