HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by de Groat, W. C. Articles by Ryall, R. W. Search for Related Content PubMed PubMed Citation Articles by de Groat, W. C. Articles by Ryall, R. W.

1. The effects produced by stimulation of the central end of transected ventral roots were observed on spontaneous and evoked vesical contractions and on the firing of sacral parasympathetic neurones.

2. Recurrent inhibition of sacral parasympathetic neurones was demonstrated at frequencies of stimulation above 10/sec and at intensities above threshold for the parasympathetic axons.

3. Recurrent inhibition was present in chloralose cats, as well as in decerebrate animals and was unaffected by chronic spinal transection.

4. Interneurones were located which are presumed to be the autonomic equivalents of the somatic Renshaw cells. They were synaptically activated by antidromic stimulation of preganglionic fibres in sacral ventral roots.

5. The inhibition of vesical contractions and the firing of the interneurones was reduced when the intravesical pressure was raised.

6. The recurrent inhibition was unaffected by the intravenous injection of dihydro--erythroidine.

7. Strychnine reduced the recurrent inhibition in some experiments but the results were inconsistent. The effects of picrotoxin were inconclusive.

8. The possible role of recurrent inhibition in micturition is discussed.

This article has been cited by other articles:

				C. Tai, B. Shen, J. Wang, M. B. Chancellor, J. R. Roppolo, and W. C. de Groat Inhibitory and excitatory perigenital-to-bladder spinal reflexes in the cat Am J Physiol Renal Physiol, March 1, 2008; 294(3): F591 - F602. [Abstract] [Full Text] [PDF]

				L. Mazieres, C. H. Jiang, and S. Lindstrom Recurrent inhibition of the bladder C fibre reflex in the cat and its response to naloxone J. Physiol., September 1, 2006; 575(2): 603 - 615. [Abstract] [Full Text] [PDF]

				D Derjean, S Bertrand, F Nagy, and S. J Shefchyk Plateau potentials and membrane oscillations in parasympathetic preganglionic neurones and intermediolateral neurones in the rat lumbosacral spinal cord J. Physiol., March 1, 2005; 563(2): 583 - 596. [Abstract] [Full Text] [PDF]

				M. Sasaki Feed-forward and feedback regulation of bladder contractility by Barrington's nucleus in cats J. Physiol., May 15, 2004; 557(1): 287 - 305. [Abstract] [Full Text] [PDF]