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CONVERGENCE OF PERLANAL CUTANEOUS AND PELVIC VISCERAL NOCICEPTIVE INPUTS ONTO NEURONS OF DORSAL COMMISSURAL NUCLEUS IN THE CAT SACRAL SPINAL CORD
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- Author:
- No author available
- Journal Title:
- ACTA PHYSIOLOGICA SINICA
- Issue:
- 5
- DOI:
- 10.3321/j.issn:0371-0874.1998.05.015
- Key Word:
- 后连合核;细胞外记录;Aδ纤维;盆神经;会阴区;猫;dorsal commissural nucleus;extracellular recording;Aδ fiber;pelvic nerve;perianal region;cat
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.
- [1]C, Morgan,I, Nadelhaft,W C, de Groat.The distribution of visceral primary afferents from the pelvic nerve to Lissauer's tract and the spinal gray matter and its relationship to the sacral parasympathetic nucleus.[J].1981,201(3).
- [2]Chiang CY,Sessle BJ,Hu JW.Parabrachial area and nucleus raphe magnus-induced modulation of electrically evoked trigeminal subnucleus caudalis neuronal responses to cutaneous or deep A-fiber and C-fiber inputs in rats.[J].1995,62(1).
- [3]T J, Ness,G F, Gebhart.Characterization of neuronal responses to noxious visceral and somatic stimuli in the medial lumbosacral spinal cord of the rat.[J].1987,57.
- [4]I. Nadelhaft,J. Roppolo,C. Morgan,etc.Parasympathetic preganglionic neurons and visceral primary afferents in monkey sacral spinal cord revealed following application of horseradish peroxidase to pelvic nerve[J].1983,216(1).
- [5]W C, De Groat.Spinal cord projections and neuropeptides in visceral afferent neurons.[J].1986,67.
- [6]C N, Honda.Visceral and somatic afferent convergence onto neurons near the central canal in the sacral spinal cord of the cat.[J].1985,53.
- [7]Dr. J. I. Nagy,Dr. S. P. Hunt.The termination of primary afferents within the rat dorsal horn: Evidence for rearrangement following capsaicin treatment[J].1983,218(2).
- [8]J R, Roppolo,I, Nadelhaft,W C, de Groat.The organization of pudendal motoneurons and primary afferent projections in the spinal cord of the rhesus monkey revealed by horseradish peroxidase.[J].1985,234(4).