Flexor digitorum superficialis muscle

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Description:

Origin:
Medial epicondyle of humerus via the common flexor tendon, anterior surface of ulnar collateral ligament, medial surface of the coronoid process (humeroulnar head); anterior surface of radius from radial tuberosity to mid-radius (radial head)

Insertion:
Individual tendons split and wrap around deep tendons before reuniting to attach to anterior surface of the middle phalanges of the four fingers (independent tendons to all fingers)

Actions:
Flexes the fingers and wrist

Nerve supply:
Median nerve

Blood supply:
Branches of the ulnar artery