The extensor digitorum (extensor digitorum communis) is a wide, lateral muscle. It has a flat, fusiform belly that originates from the lateral epicondyle of the humerus and extends towards the lower half of the forearm where it develops into four tendons that insert into the middle and distal phlanges of the fingers. It does not insert into the thumb. The
extensor digitorum is innervated by the radial nerve and supplied by the posterior interosseous artery. This muscle works to extend all the joints of the fingers. It also extends the wrist. Research Extensor Digitorum
The Probert Encyclopaedia was designed, edited and programed by
Matt and Leela Probert
Abbreviations
Medicine
Research Extensor Digitorum
