extensor digitorum muscle

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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 ?
Time-course of body mass (A), changes of body mass (B), soleus muscle mass (C), extensor digitorum longus (EDL) muscle mass (D), EDL fiber cross-sectional area (CSA) and corresponding microphotograph (E), rotarod test performance pre- and post-RET protocol (F), and ambulation test performance pre- and post-RET protocol (G) for control, fasting and fasting + RET experimental groups.
This finding was also supported when evaluating individual muscles as instrument B resulted in significantly more muscle load at the median and peak percentiles for both the extensor digitorum longus and the fiexor pollicis longus muscles when compared to the other instruments.
For peroneal nerve motor conduction velocity, an active electrode was positioned over the belly of the extensor digitorum brevis muscle.
However, it has been demonstrated that FT tendon and/or FT belly are sometimes difficult to separate from the extensor digitorum longus [30].
The superficial interval between the extensor carpi radialis brevis and the extensor digitorum communis was incised and the supinator muscle belly was exposed (Figs.
[12]; 4) Dropped toes caused by laxity of the tendons of the paralysed extensor digitorum longus (1 case) when the ankle once again assumes the right angled position and pull of the tendons of the flexor digitorum longus shortened by the dropped foot position.
Intraoperatively, a soft tissue mass was seen arising from the extensor digitorum brevis tendon sheath and the underlying capsule of the first metatarsophalangeal joint [Figure 2].
(16) Tenosynovitis is also a common feature of RA, particularly involving the flexor digitorum, extensor digitorum, and extensor carpi ulnaris tendons (Figure 17).
El musculo extensor digital lateral (extensor digitorum lateralis), fusiforme, se origino en el condilo lateral de la tibia y ligamento colateral, su cuerpo carnoso continuo por un tendon aplanado y se inserto en proximal de la tercera falange del dedo IV.
Electroneuronographic study, 11 November 2014 Motor nerve responses CMAP Normal Nerve Muscle amplitude values R median APB 2.6 mV > 4.0 mV R ulnar ADM 530 [micro]V > 6 mV R peroneal EDB 127 [micro]V > 2 mV R tibial AH 1.7 mV > 4 mV R sural Sensory nerve responses Peak SNAP Normal Nerve latency amplitude value R median Palmar 50.7 [micro]V > 50 [micro]V R ulnar Palmar 34.5 [micro]V > 15 [micro]V R peroneal R tibial R sural Point B 24.0 [micro]V > 6 [micro]V R = right; CMAP = compound muscle action potential; SNAP = sensory nerve action potential; APB = abductor pollicis brevis; ADM = abductor digiti minimi; EDB = extensor digitorum brevis; AH = abductor hallices.
Samples of blood and extensor digitorum longus (EDL; fast type) and soleus (SOL; slow type) skeletal muscles were collected.

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