extensor carpi radialis brevis muscle


ex·ten·sor car·pi ra·di·a·lis bre·vis mus·cle

(eks-ten'sŏr kahr'pī rā-dē-ā'lis brē') Origin, lateral epicondyle of humerus; insertion, base of third metacarpal bone; action, extends and abducts wrist radially; nerve supply, radial.
Synonym(s): musculus extensor carpi radialis brevis [TA] , short radial extensor muscle of wrist.