Obturator externus muscle

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The obturator externus muscle is a muscle in the hip that rotates the hip laterally (turns the knee cap outward).


Pectineus muscle Obturator externus muscle Adductor magnus muscle Adductor magnus muscle Adductor brevis muscle Adductor longus muscle Femur Pubic bone Ilium bone'The deep muscles of the thigh.'


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The deep muscles of the thigh viewed from the front

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Origin

The obturator externus originates from the pelvis, on the rim of the obturator foramen at the junction of the pubic bone and the ischium, and the outer obturator membrane.

Insertion

The obturator externus inserts on the femur at the trochanteric fossa on the medial surface of the greater trochanter.

Innervation

The obturator externus is innervation by the posterior division of the obturator nerve (L2-L4).

See also

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