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A member asked:

Is there a specific muscle responsible for locking the knee? i know popliteus unlocks the knee, but don't know what it's opposing counter part is.

A doctor has provided 1 answer

Quadriceps: The quadriceps femoris is responsible for locking the knee in an extended position.

Dr Pappas and 2 doctors agreed

Answered 9/28/2013

4.9k views

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