Extensor Indicis

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Extensor Indicis origin

dorsal surface of ulna shaft, interosseous membrane

Extensor Indicis actions - hand

extension of MP, IP joints of index finger

Extensor Indicis actions - wrist joint

extension of wrist joint with continued action

Extensor Indicis insertion

joins ulnar side of 1st extensor digitorum tendon to 2nd digit and extensor hood

Extensor Indicis innervation

radial nerve (C7-C8)


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