Document Detail

Vasomotor response to thermal stimulation of the scrotal skin in rats.
MedLine Citation:
PMID:  944907     Owner:  NLM     Status:  MEDLINE    
In 27 anesthetized rats arterial blood pressure and electrical activity of dorsal horn neurones were recorded during thermal stimulation of the scrotal skin. In 19 of these animals blood pressure increased during scrotal skin warming, showing a distinct threshold at about 37.5 degrees C in 16 rats. This effect was reproducible during the whole experiment although quantitative changes of the response occurred. In most experiments a transient response was seen at the beginning of the vasomotor reaction. The mean increase of blood pressure to a superthreshold warming step, derived from 11 experiments in which more than 3 temperatures were tested and in which the blood pressure was above 100 mm Hg, was 25 +/- 14 mm Hg. The observed threshold of the vasomotor response corresponds well with the threshold of activity increase in warm sensitive dorsal horn neurones to scrotal skin warming. It is suggested that the blood pressure reaction is mediated by scrotal skin warm receptors, which supports the notion that some organ specificity exists in thermoreceptors of the scrotal skin.
T Neya; F K Pierau
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Pflügers Archiv : European journal of physiology     Volume:  363     ISSN:  0031-6768     ISO Abbreviation:  Pflugers Arch.     Publication Date:  1976 May 
Date Detail:
Created Date:  1976-08-02     Completed Date:  1976-08-02     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0154720     Medline TA:  Pflugers Arch     Country:  GERMANY, WEST    
Other Details:
Languages:  eng     Pagination:  15-8     Citation Subset:  IM    
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MeSH Terms
Blood Pressure
Body Temperature Regulation*
Hot Temperature
Neurons / physiology
Physical Stimulation
Scrotum / physiology*
Skin / blood supply*
Spinal Cord / physiology
Vasomotor System / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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