PMID: 8971789Nov 22, 1996Paper

Vesico-sympathetic reflexes in cat vasoconstrictor neurones supplying skin and skeletal muscle depend on the integrity of the sacral bladder afferents

Neuroscience Letters
M MichaelisW Jänig

Abstract

In anesthetized cats, distension of the urinary bladder induces powerful reflexes in postganglionic sympathetic neurones projecting to the hindlimb: muscle vasoconstrictor neurones (MVC) are excited and cutaneous vasoconstrictor neurones (CVC) are inhibited. We investigated these reflexes quantitatively before and after sacral rhizotomy. The reflex responses in MVC and CVC neurones were completely abolished after elimination of the pelvic afferent input demonstrating that these reflexes are generated exclusively by excitation of sacral bladder afferents. The activation of lumbar bladder afferents which are supposed to be able to elicit painful sensations did not contribute to vesico-sympathetic reflexes in MVC and CVC neurones.

References

Jul 1, 1990·Journal of the Autonomic Nervous System·W Jänig, M Koltzenburg
Oct 1, 1987·Pflügers Archiv : European journal of physiology·E BahnsW Jänig
Nov 1, 1986·Pflügers Archiv : European journal of physiology·E BahnsA Nelke
Mar 1, 1986·The Journal of Comparative Neurology·W Jänig, E M McLachlan
Jul 15, 1980·The Journal of Comparative Neurology·A E ApplebaumR E Coggeshall

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