| Origin |
Humoulnar head: medial epicondyle of humerus, ulnar collateral ligament, and coronoid process of ulna
Radial head: superior half of anterior border of radius
|
| Insertion |
Bodies of middle phalanges of digits 2 - 5
|
| Action |
Flexes middle phalanges at proximal interphalangeal joints of medial four digits;
acting more strongly, it also flexes proximal phalanges at metacarpophalangeal joints and hand
|
| Innervation |
Median nerve (C7, C8 and T1)
|
Arterial
Supply |
Ulnar artery
|
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.
|
 |