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Actions of the Knee

Actions of the Knee. Flexion/Extension. Extension of the knee. Vastus lateralis Vastus intermedius Vastus medialis Rectus femoris. Biceps femoris Semitendinosus Semimembranosus Sartorius. Gracilis Gastrocnemius Plantaris Popliteus. Flexion of the knee.

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Actions of the Knee

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  1. Actions of the Knee

  2. Flexion/Extension

  3. Extension of the knee • Vastus lateralis • Vastus intermedius • Vastus medialis • Rectus femoris

  4. Biceps femoris Semitendinosus Semimembranosus Sartorius Gracilis Gastrocnemius Plantaris Popliteus Flexion of the knee

  5. Lateral (External) Rotation/ Medial (Internal) Rotation

  6. External rotation of the knee • Biceps femoris

  7. Internal rotation of the knee • Semitendinosus • Semimembranosus • Popliteus • Gracilis • Sartorius

  8. Actions of the Thigh, Hip, Pelvis • Flexion • Extension • Abduction • Adduction • Lateral (external) Rotation • Medial (internal) Rotation

  9. Iliopsoas Pectineus Tensor fascia latae Adductor brevis Adductor longus Adductor magnus Rectus femoris sartorius Hip flexion

  10. Hip extension • Gluteus maximus • Biceps femoris • Semitendinosus • Semimembranosus • Adductor magnus

  11. Gluteus medius Gluteus minimus Tensor fascia latae Sartorius Gluteus maximus Piriformis Obturator internus Gemellus inferior Hip abduction

  12. Hip adduction • Adductor brevis • Adductor longus • Adductor magnus • Gracilis • Pectineus • Gluteus maximus

  13. Piriformis Gemellus superior Obturator internus Gemellus inferior Obturator externus Quadratus femoris Gluteus maximus Iliopsoas Sartorius External rotation of the hip

  14. Gluteus medius Gluteus minimus Tensor fascia latae Pectineus Adductor longus Adductor brevis Adductor magnus Gracilis Internal rotation of the hip

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