Question

Which muscle extends the knee, laterally rotates the tibia, aids in abduction and medial rotation of the femur, and tautens the iliotibial tract to brace the knee when the opposite foot is lifted

Answer 1

The popiletus muscle is the muscle that extends the knee , laterally rotates the tibia.

The popliteus muscle is a little muscle that extends the knee and form muscle the floor of the popliteal fossa. It is part of deep posterior leg muscles, that rotate laterally tibialis posterior, flexor digitorum longus and flexor hallucis longus.

The popliteus muscle extends to the knee joint. It is formed from the femur and the posterior horn of the lateral meniscus, and also extend to the proximal tibia.

The popliteus muscle help to function in an gait cycle by causing the flexion of the extended (“locked”) knee.

Therefore, The popiletus muscle is the muscle that extends the knee , laterally rotates the tibia.

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