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extensor digitorum

   Also found in: Acronyms, Wikipedia 0.02 sec.
extensor digitorum,
a muscle of the posterior forearm. It divides distally into four tendons that pass under the extensor retinaculum and diverge on the back of the hand, inserting into the second and third phalanges of the medial four fingers. It functions to extend the phalanges and, by continued action, the wrist. Also called extensor digitorum communis.


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Small compound muscle action potentials from the extensor digitorum brevis muscles were observed by both proximal and distal stimulation.
Conventional NMES typically uses surface electrodes placed proximally and distally on the extensor carpi radialis longus, extensor carpi radialis brevis, extensor carpi ulnaris, extensor digitorum, and adductor pollicis.
The extensor digitorum is responsible for extension of the toes and the extensor hallucis brevis is responsible for extension of the big toe.
 
 
 
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