part of part of attached to attached to has muscle origin has muscle origin has muscle insertion has muscle insertion femur obturator externus http://upload.wikimedia.org/wikipedia/commons/5/55/Posterior_Hip_Muscles_1.PNG FMA:22299 external obturatus Originates on the ventro-lateral pelvic rim and inserts on the ventral aspect of the femur, medial to the insertion of the pectineus.[AAO] obturatorius externus UBERON:0001368 musculus obturatorius externus external obturator Wikipedia:Obturator_externus_muscle EMAPA:36236 An adductor muscle that attaches to the femur and the pelvis. In humans, the obturator externus muscle 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, and sometimes considered part of the gluteal region. [WP,generalized]. SCTID:245026009 the definition generalized to accommodate the AAO class - 'Originates on the ventro-lateral pelvic rim and inserts on the ventral aspect of the femur, medial to the insertion of the pectineus.' [AAO:0010043] obturatus externus UMLS:C1518528 NCIT:C33191 externus obturator MA:0002347 AAO:0010043 obturator externus M. obturator externus external obturator greater trochanter musculature of pelvic girdle obturator foramen obturator muscle adductor muscle of hip