flexor digitorum superficialis muscle
Distaler
Querschnitt durch den Unterarm auf Höhe des M. pronator quadratus
Ausriss der
Sehne des M. flexor digitorum superficialis an der Mittelgliedbasis
Flexor digitorum superficialis (FDS) muscle, also known as flexor digitorum sublimis muscle, is a muscle in the second(intermediate) layer of the anterior compartment of the forearm. It splits into four tendons, passes through the carpal tunnel under the flexor retinaculum. At the level of the head of the metacarpal, the FDS tendons split and wrap around the flexor digitorum profundus muscle creating an aperture for the flexor digitorum profundus to travel through. The FDS tendons rejoin deep to the flexor digitorum profundus and insert at the volar side of the proximal portion of the middle phalanx of the 2- 5 digits. It is one of the extrinsic muscles of the hand.
Summary
- origin
- humeroulnar head: medial epicondyle of the humerus and coronoid process of the ulna
- radial head: diaphysis of the radius
- insertion: via four tendons into the volar aspect of the base of the middle phalanges of digits 2-5 (index, middle, ring and little fingers)
- innervation: median nerve (C7-T1)
- action: flexion of the proximal interphalangeal joints
Siehe auch:
und weiter:
Assoziationen und Differentialdiagnosen zu Musculus flexor digitorum superficialis:
