CONVERGENCE OF PERLANAL CUTANEOUS AND PELVIC VISCERAL NOCICEPTIVE INPUTS ONTO NEURONS OF DORSAL COMMISSURAL NUCLEUS IN THE CAT SACRAL SPINAL CORD
10.3321/j.issn:0371-0874.1998.05.015
- VernacularTitle:会阴部皮肤和盆腔内脏的伤害感受性信息在猫骶髓后连合核神经元的汇聚
- Author:
SHAN-XUE JIN
1
;
Ji-Shuo LI
;
BING-ZHI QIN
Author Information
1. 第二军医大学
- Keywords:
dorsal commissural nucleus;
extracellular recording;
Aδ fiber;
pelvic nerve;
perianal region;
cat
- From:
Acta Physiologica Sinica
1998;50(5):570-574
- CountryChina
- Language:Chinese
-
Abstract:
The effects of somatic and visceral nociceptive stimulation on neurons of dorsal commissural nucleus in sacral spinal cord were studied in pentobarbitone anesthetized cats using extracellular recording techniques. The results indicated that all neurons deriving input from Aδ fibers of the pelvic nerve were either nociceptive specific or wide dynamic range neurons, and could be activated by mechanical or intense electrical stimulation of the respective receptive fields including perianal region. The above results suggest that the Aδ afferents innervation of the pelvic organ is important in nociception.
