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pop·li·te·us .päp-lə-'tē-əsalso päp-'lit-ē-əs n, pl -li·tei -.ī a flat muscle that originates from the lateral condyle of the femur, forms part of the floor of the popliteal space, and functions to flex the leg and rotate the femur medially
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n.
a flat triangular muscle at the back of the knee joint, between the femur and tibia, that helps to flex the knee.
• popliteal adj.
Medical dictionary. 2011.