[The effect of deep branches of cervical nerve on motorial function of trapezius muscle].
OBJECTIVE
The aim of this study was to examine the effects of deep branches of cervical plexus on trapezius muscle.


METHODS
The evoked electromyography of 32 trapezius of 16 SD rats was examined in different time and results obtained were processed by statistical methods.


RESULTS
After cutting the accessory nerves, stimulating the deep branches of cervical plexus evoked the myoelectricity, the myoelectricity results varied according to different time.


CONCLUSIONS
The deep branches of cervical plexus are another important motorial supply to trapezius muscles. After cutting the accessory nerves, if the branches were undamaged, the shoulder's function would be greatly preserved.
Wang
Feng
F
Department of Oral and Maxillofacial Surgery, West China College of Stomatology, Sichuan University, Chengdu 610041, China.
Wen
Yuming
Y
Li
Longjiang
L
D000055:Accessory Nerve / Q000502:physiology*; D000818:Animals; D002572:Cervical Plexus / Q000502:physiology*; D004576:Electromyography; D008297:Male; D018482:Muscle, Skeletal / Q000033:anatomy & histology / Q000294:innervation* / Q000502:physiology; D037981:Neck Dissection / Q000009:adverse effects; D009334:Neck Muscles / Q000033:anatomy & histology / Q000293:injuries / Q000502:physiology; D051381:Rats; D017207:Rats, Sprague-Dawley; D012782:Shoulder / Q000294:innervation