Muscle Atlas
Obturator Internus
Origin: Internal surface of obturator membrane and posterior bony margins of obturator foramen
Insertion: Medial surface of greater trochanter of femur, in common with superior and inferior gemelli
Action: Rotates the thigh laterally; also helps abduct the thigh when it is flexed
Innervation: Nerve to the obturator internus and superior gemellus -- a branch of the sacral plexus (L5, S1)
Arterial Supply: Internal pudendal and superior and inferior gluteal arteries
The medical illustrations contained in this online atlas are copyrighted © 1997 by the University of Washington. They may not be utilized, reproduced, stored, or transmitted in any form or by any means, electronic or mechanical, or by any information storage or retrieval system, without permission in writing from the University of Washington.
Receiving a license to use these images is generally quite easy, particularly for academic and scholarly purposes. For more information see the Musculoskeletal Atlas Express Licensing Page.
Insertion: Medial surface of greater trochanter of femur, in common with superior and inferior gemelli
Action: Rotates the thigh laterally; also helps abduct the thigh when it is flexed
Innervation: Nerve to the obturator internus and superior gemellus -- a branch of the sacral plexus (L5, S1)
Arterial Supply: Internal pudendal and superior and inferior gluteal arteries
The medical illustrations contained in this online atlas are copyrighted © 1997 by the University of Washington. They may not be utilized, reproduced, stored, or transmitted in any form or by any means, electronic or mechanical, or by any information storage or retrieval system, without permission in writing from the University of Washington.
Receiving a license to use these images is generally quite easy, particularly for academic and scholarly purposes. For more information see the Musculoskeletal Atlas Express Licensing Page.