extensor indicis action, origin, insertion, innervation
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Extensor Indicis action
extend second finger, adduct second finger, assist to extend wrist
extensor indicis origin
posterior surface of distal shaft of ulna and interosseous membrane
extensor indicis innervation
radial, C6,7,8
extensor indicis insertion
tendon of the extensor digitorum at the level of the second metacarpal
