Summary
| Location: | On the back of the hand, extending the index finger. |
Information
| Group: | Wrist and Hand |
| Side(s) of body: | Back |
| Function/Action: | Index Finger Extensor |
Details
| Joint: | Metacarpophalangeal |
| Bone: | Ulna, Carpals, Phalanges |
| Origin: | Posterior surface of ulna and interosseous membrane. |
| Insertion: | Extensor expansion of index finger’s distal phalanx. |