flexor digitorum superficialis (muscle)
Definition: intermediate muscle of anterior (flexor) compartment of forearm; origin, via a humeroulnar head from the medial epicondyle of the humerus, the medial border of the coronoid process, and a tendinous arch between these points, and a radial head from the oblique line and middle third of the lateral border of the radius; insertion, by four split tendons, passing to either side of the flexor digitorum profundus tendons, into sides of middle phalanx of each finger; action, flexes proximal interphalangeal joint of the fingers; nerve supply, median.
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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.