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Obturator Externus
Region: Hip & Thigh Muscles · All hip & thigh muscles
Obturator Externus at a glance
| Origin | Outer surface of the obturator membrane and surrounding pubic bones |
|---|---|
| Insertion | Trochanteric fossa of the femur |
| Actions | Rotates the thigh outward; Steadies the femoral head in its socket |
| Nerve supply | Obturator nerve (L3–L4) |
◆ Good to know
Unlike obturator internus it is supplied by the obturator nerve and lies on the outside of the pelvis, deep to the hip joint.
More Hip & Thigh Muscles
Please note: This page is an anatomy education summary for students and curious readers, not medical advice. Attachment points are given in their classic short form; individual anatomy varies, and detailed dissection-level descriptions belong in an anatomy atlas.