Answers (6)
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The knee is responsible for flexion and extension
The Hamstrings: Biceps Femoris, Semimembranosus,Semitendinosus and The Quads: Biceps Femoris, Vastus Intermedius, Vastus Lateralis, and Vastus Medialis are the muscles involved.Last but not least, the Popliteus is responsible for knee flexion also.
The Hamstrings: Biceps Femoris, Semimembranosus,Semitendinosus and The Quads: Biceps Femoris, Vastus Intermedius, Vastus Lateralis, and Vastus Medialis are the muscles involved.Last but not least, the Popliteus is responsible for knee flexion also.
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Hi Derek,
just to add to Susan's answer:
The popliteus is also responsible for internal rotation of the tibia as well as for unlocking the knee joint when bending the knee from a fully straightened position.
Karin Singleton
www.meltnc.com
just to add to Susan's answer:
The popliteus is also responsible for internal rotation of the tibia as well as for unlocking the knee joint when bending the knee from a fully straightened position.
Karin Singleton
www.meltnc.com
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The knee joint flexes and extends
Popliteus which is found behind the knee plays huge role in providing lateral stability to the knee. Vastus intermedius, extends the knee. Vastus lateralis, largest muscle group to the quadricep also is extension. Vastus medialis, knee extension part of the lower thigh.
Popliteus which is found behind the knee plays huge role in providing lateral stability to the knee. Vastus intermedius, extends the knee. Vastus lateralis, largest muscle group to the quadricep also is extension. Vastus medialis, knee extension part of the lower thigh.
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The Gastrocnemius muscle also contributes to knee flexion, as does the Articularis genu, although in a more secondary fashion, as it pulls the suprapatellar bursa out of the way as the knee extends to prevent impingement.
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Sorry to contradict Bryant, but I think the forum is fine. As answered, the knee flexes and extends, it's not designed to rotate. Regarding Susan's answer, the biceps femoris is also known as the rectus femoris. Good kinesiology you all!
Take care.
Take care.
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