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Which three muscles flex the knee?

User CHENJIAN
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Spanning the posterior thigh, the hamstring muscles are the primary knee flexors. the hamstring group is made of The semitendinosus, semimembranosus, and biceps femoris (long and short heads)
User Pereira
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Answer:

The hamstring group muscles (semitendinosus, semimembranosus, and biceps femoris) flex the knee and extend the hip.

Step-by-step explanation:

User Avi Fatal
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