Innervation of the striated muscle of the membranous urethra of the male dog

The Journal of Urology
K E CreedK W Kaye

Abstract

To identify the functional innervation of the striated muscle layer of the post-prostatic urethra of male dogs. Detailed anatomic dissection of the pelvic and pudendal nerves was carried out. The pressure and contractile responses to stimulation of these nerves were recorded in vivo and in vitro. Small branches of the pelvic nerve entered the membranous urethra but passed through the striated muscle to the inner smooth muscle layer. Stimulation of the nerve with 1 msec pulses at 10 Hz produced a slow contraction of the urethra which was unaffected by d-tubocurarine. Pudendal nerve branches entered the striated layer from the caudal end. Stimulation produced a rapid, visible contraction that was abolished by d-tubocurarine. Field stimulation of isolated strips of striated muscle resulted only in rapid, d-tubocurarine sensitive contractions. The striated muscle of the membranous urethra is innervated exclusively by the pudendal nerve.

References

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Citations

Mar 17, 2000·Seminars in Urologic Oncology·M S Steiner
Feb 15, 2000·BJU International·B A Van der WerfK E Creed
May 21, 2010·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Karl B Thor, William C de Groat
Feb 14, 2007·Der Urologe. Ausg. A·C van der HorstP M Braun
Sep 8, 2006·BJU International·Richard D WaltersAlison F Brading
Nov 30, 2012·Neurourology and Urodynamics·Seong Ho LeeWilliam D Steers
Jun 11, 2011·Neurourology and Urodynamics·Prajni SadanandaMarcus J Drake
Sep 8, 2006·European Urology·Angelo J Cambio, Christopher P Evans
Jun 30, 2015·Autonomic Neuroscience : Basic & Clinical·Zachary C Danziger, Warren M Grill
Jun 21, 2001·Scandinavian Journal of Urology and Nephrology. Supplementum·K E Creed, B A Van der Werf
Aug 28, 2002·Anatomia, histologia, embryologia·Jens-Uwe StolzenburgJochen Neuhaus
Dec 12, 2002·Scandinavian Journal of Urology and Nephrology. Supplementum·A L DalmoseJ C Djurhuus

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