Muscle Atlas
Interosseous Muscles, Dorsal
Origin: Dorsal 1 - 4: Adjacent sides of two metacarpals (bipennate muscles)
Insertion: Dorsal 1 - 4: Extensor expansions and bases of proximal phalanges of digits 2 - 4
Action: Dorsal 1 - 4: Abduct digits from axial line and act with lumbricals to flex metacarpophalangeal joints and extend interphalangeal joints
Innervation: Deep branch of ulnar nerve (C8 and T1)
Arterial Supply: Dorsal 1 - 4: Dorsal and palmar metacarpal 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: Dorsal 1 - 4: Extensor expansions and bases of proximal phalanges of digits 2 - 4
Action: Dorsal 1 - 4: Abduct digits from axial line and act with lumbricals to flex metacarpophalangeal joints and extend interphalangeal joints
Innervation: Deep branch of ulnar nerve (C8 and T1)
Arterial Supply: Dorsal 1 - 4: Dorsal and palmar metacarpal 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.