Obturator Internus

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Original Author(s): Oliver Jones
Last updated: October 21, 2022
Revisions: 2

Original Author(s): Oliver Jones
Last updated: October 21, 2022
Revisions: 2

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The obturator internus is a muscle of the gluteal region in the lower limb. It forms part of the lateral wall of the pelvic cavity.

  • Attachments: Originates from the pubis and ischium at the obturator foramen. It travels through the lesser sciatic foramen and attaches onto the greater trochanter of the femur.
  • Actions: Lateral rotation and abduction of the lower limb.
  • Innervation: Nerve to obturator internus.
  • Blood Supply: Obturator artery

Fig 1 – The deep muscles of the gluteal region.