Musculus obturatorius externus

The obturator externus is a flat, triangular muscle, which covers the outer surface of the anterior wall of the pelvis.

Summary

  • origin: external surface of obturator membrane and adjacent bone (inferior pubic ramus and the ramus of the ischium)
  • insertion: trochanteric fossa of femur
  • action: laterally rotates thigh at the hip
  • arterial supplyobturator artery
  • innervationobturator nerve
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