Extensor Carpi Ulnaris


Origin: Common forearm extensor tendon from the lateral border of the Distal humerus, the posterior border of the Ulna and the common forearm extensor origin

Insertion: dorsal base of the Small Metacarpal

Function: extension and ulnar deviation of the Wrist along with other muscles which extend the wrist and ulnarly deviate the wrist and extends the small finger carpometacarpal joint

Nerve: Posterior Interosseous Nerve

Artery: Posterior Interosseous artery

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