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External Obstructive Muscle
Last reviewed: 23.04.2024
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The external obturator muscle (m.obturatorius externus) is triangular in shape, begins on the outer surface of the pubic bone and the leg of the ischium, as well as on the medial two-thirds of the occlusal membrane. The muscle bundles, converging, are directed back, laterally and upward. The tendon of the muscle passes behind the hip joint and is attached to the fossa of the femur and to the joint bag.
Function of the external occlusal muscle: turns the hip outward.
Innervation of the external occlusal muscle: the occlusal nerve (LII-LIV).
Blood supply to the external occlusal muscle: obstructive artery, lateral artery, enveloping the femur.
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