What is the screw-home mechanism that occurs at the knee when moving from sitting to standing?

Name: What is the screw-home mechanism that occurs at the knee when moving from sitting to standing?
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Quizplus · Accepted Answer

The screw-home mechanism at the knee occurs when the femur medially rotates during the last 20-30 degrees of extension, locking the knee joint. This allows the body to stand upright with less effort and allows the knee to act as a stable joint to support the weight of the body.

What Is the Screw-Home Mechanism That Occurs at the Knee