Flexor digitorum superficialis (flexor digitorum sublimis) is an extrinsic flexor muscle of the fingers. The bulk of the muscle is in the intermediate layer of the anterior compartment of the forearm.

Four long tendons come off this muscle, and travel through the carpal tunnel. They then attach to the base of the proximal phalanges on the four fingers. These tendons have a split, or a hole, at the end of them through which the tendons of flexor digitorum profundus will travel.

External links

Muscles of the upper limb | Forearm | Musculus flexor digitorum superficialis