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Anatomy General af0b76c7

Physiological locking is -

A
Internal rotation of femur over stabilized tibia
B
Internal rotation of tibia over stabilized femur
C
External rotation of tibia over stabilized tibia
D
External rotation of femur over stabilized tibia
High-Yield Explanation
During last stages of extension, femur rotates medially on tibia due to quadriceps femoris to lock the knee joint.

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