Origin

Obturator foramen and obturatory membrane

Insertion

Medial aspect of greater trochanter of femur

Action(s)

Adduct thigh, rotate laterally thigh

Nerve Supply

Posterior branch of obturator nerve (third and fourth lumbar nerves)

Arterial Supply

Obturator artery

Physical Exam

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Clinical Importance

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Disease States

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Discussion

Relations:

The obturator vessels lie between the muscle and the obturator membrane; the anterior branch of the obturator nerve reaches the thigh by passing in front of the muscle, and the posterior branch by piercing it.

Figures

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Credits:

From Wikipedia:
Obturator externus

Attachments:


Obturator externus.png (image/x-png)