extensor digitorum muscle

(redirected from Extensor digitorum communis muscle)

ex·ten·sor di·gi·to·rum mus·cle

[TA]
muscle of posterior (extensor) compartment of forearm; origin, lateral epicondyle of humerus; insertion, by four tendons into the bases of the middle and distal phalanges; action, extends fingers, especially at metacarpophalangeal joint; nerve supply, radial (posterior interosseous).

ex·ten·sor di·gi·to·rum mus·cle

(eks-ten'sŏr dij-i-tō'rŭm mŭs'ĕl) [TA]
Origin, lateral epicondyle of humerus; insertion, by four tendons into the base of the proximal and middle and base of the distal phalanges; action, extends fingers; nerve supply, radial (posterior interosseous).
Synonym(s): musculus extensor digitorum [TA] , extensor muscle of fingers, musculus extensor digitorum communis.

extensor digitorum muscle

Forearm muscle. Origin: lateral epicondyle of humerus. Insertion: common extensor tendon of fingers. Nerve: radial (C7-C8). Action: extends fingers and wrist.
See: arm for illus. (Muscles of the Arm)
See also: muscle
References in periodicals archive ?
A pair of electrodes for EMG detection and stimulation are placed on the affected extensor digitorum communis muscle, and one electrode for stimulation is placed on the affected extensor indicis muscle.
leucopus specimens two independent lateral digital extensor muscles were found, they were between the craniolateral antebrachial muscles These extensors are called the extensor digiti IV proprius muscle (extensor digiti quarti proprius) and extensor digiti V proprius muscle (extensor digiti quinti proprius), they are between the extensor digitorum communis muscle and extensor carpi ulnaris muscle.
RMANOVA indicated significant effects for the flexor digitorum superficialis and extensor digitorum communis muscles (p < 0.05), but not the flexor pollicis longus (p = 0.18) and extensor carpi radialis brevis (p = 0.08) muscles.
The anterior surface contains attachments for the ECRB and extensor digitorum communis muscles, which are in fact part of the common extensor tendon origin.

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