The adductor magnus is the largest and most powerful of the adductor muscles
of the thigh.
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It arises from the inferior pubic ramus, the ramus of the ischium and the
ischial tuberosity.
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It has a fleshy insertion onto the linea aspera of the femoral shaft and
a tendinous insertion onto the adductor tubercle on the medial condyle of
the femur.
(In evolutionary terms, the medial collateral ligament of the knee joint may be a downward continuation of the latter).
Between these 2 insertions is a gap (hiatus) through which the femoral artery and vein pass backwards into the popliteal fossa to become the popliteal vessels.
adductor magnus has a dual innervation from the obturator and sciatic
nerves.