 | This article includes a list of general references, but it lacks sufficient corresponding inline citations. (October 2011) |
| External obturator muscle | |
|---|---|
 The obturator externus and nearby hip muscles (posterior view) | |
 The obturator externus. Anterior-Inferior view | |
| Details | |
| Origin | Obturator foramen and obturator membrane |
| Insertion | Trochanteric fossa of femur |
| Artery | Obturator artery |
| Nerve | Posterior branch of obturator nerve (third and fourth lumbar nerves) |
| Actions | Abduct thigh, laterally rotates thigh |
| Identifiers | |
| Latin | musculus obturatorius externus |
| TA98 | A04.7.02.031 |
| TA2 | 2636 |
| FMA | 22299 |
| Anatomical terms of muscle | |
The external obturator muscle or obturator externus muscle (/ˌɒbtjʊəˈreɪtər ɪkˈstɜːrnəs/; OE) is a flat, triangular muscle, which covers the outer surface of the anterior wall of the pelvis.
It is sometimes considered part of the medial compartment of thigh,[1] and sometimes considered part of the gluteal region.[2]
It is also considered to be part of the short external rotators of the hip, along with the gemellus superior and inferior, piriformis, and quadratus femoris.[3]
- ^ Sauerland, Eberhardt K.; Patrick W. Tank; Tank, Patrick W. (2005). Grant's dissector. Hagerstown, MD: Lippincott Williams & Wilkins. p. 129. ISBN 0-7817-5484-4.
- ^ "Summary of Lower Limb". Archived from the original on 2008-01-23. Retrieved 2008-01-27.
- ^ Larson, Maddy R.; Ryan, Weston (2024), "Anatomy, Abdomen and Pelvis, Obturator Muscles", StatPearls, Treasure Island (FL): StatPearls Publishing, PMID 36943954, retrieved 2024-05-07