Flexor digitorum superficialis muscle
Flexor digitorum superficialis (flexor digitorum sublimis) is an extrinsic flexor muscle of the fingers at the proximal interphalangeal joints.
| Flexor digitorum superficialis | |
|---|---|
Transverse section across distal ends of radius and ulna. (Flexor dig. subliminis labeled at center top.) | |
Flexor digitorum superficialis | |
| Details | |
| Origin | medial epicondyle of the humerus (common flexor tendon) as well as parts of the radius and ulna. |
| Insertion | anterior margins on the base of the middle phalanges of the four fingers |
| Artery | radial artery |
| Nerve | median nerve |
| Actions | flexor of fingers (primarily at proximal interphalangeal joints) |
| Antagonist | Extensor digitorum muscle |
| Identifiers | |
| Latin | musculus flexor digitorum superficialis |
| TA98 | A04.6.02.033 |
| TA2 | 2486 |
| FMA | 38469 |
| Anatomical terms of muscle | |
It is in the anterior compartment of the forearm. It is sometimes considered to be the deepest part of the superficial layer of this compartment, and sometimes considered to be a distinct, "intermediate layer" of this compartment. It is relatively common for the Flexor digitorum superficialis to be missing from the little finger, bilaterally and unilaterally, which can cause problems when diagnosing a little finger injury.
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