Which muscle is used to bend the knee backward?

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Multiple Choice

Which muscle is used to bend the knee backward?

Explanation:
To bend the knee backward, the muscles at the back of the thigh contract, pulling the lower leg backward and reducing the angle at the knee. The hamstrings are the main muscles responsible for this action, including the biceps femoris, semitendinosus, and semimembranosus. The gastrocnemius can assist with knee flexion in some positions, but its primary job is to plantarflex the ankle. The trapezius and latissimus dorsi are upper-body muscles and do not contribute to bending the knee.

To bend the knee backward, the muscles at the back of the thigh contract, pulling the lower leg backward and reducing the angle at the knee. The hamstrings are the main muscles responsible for this action, including the biceps femoris, semitendinosus, and semimembranosus. The gastrocnemius can assist with knee flexion in some positions, but its primary job is to plantarflex the ankle. The trapezius and latissimus dorsi are upper-body muscles and do not contribute to bending the knee.

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