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Muscles: Adductor Magnus.

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Anatomy & Physiology: Muscles—Adductor Magnus.

Structure.

  • Anterior Fibers/Head
    • Origin: ischial ramus of pelvis.
    • Insertion: linea aspera of femur.
  • Posterior Fibers/Head
    • Origin: ischial tuberosity.
    • Insertion: adductor tubercle of femur.

Function.

  • Concentric action: accelerates hip adduction, flexion, and internal/medial rotation. Lesser: thigh flexion and media rotation.
  • Reverse mover action: posterior and anterior tilt pelvis; ipsilateral elevation and rotation of pelvis.
  • Eccentric action: decelerates hip abduction, extension, and external/lateral rotation.
  • Isometric action: stabilization of lumbo-pelvic hip complex.
  • Innervation: obturator and sciatic nerves.
  • Arterial supply: Anterior—femoral artery, deep femoral artery, obturator artery. Posterior—deep femoral artery, obturator artery.

Clinical Significance.

More.

References

Biel, A. (2015). Trail guide to the body: A hands-on guide to locating muscles, bones and more.

Clark, M., Lucett, S., Sutton, B. G., & National Academy of Sports Medicine. (2014). NASM essentials of corrective exercise training. Burlington, MA: Jones & Bartlett Learning.

Jenkins, G., & Tortora, G. J. (2012). Anatomy and Physiology: From Science to Life, 3rd Edition International Stu. John Wiley & Sons.

Muscolino, J. E. (2017). The muscular system manual: The skeletal muscles of the human body.