Document Detail


Changes in penile volume during some cardiovascular reflexes and reactions in rabbit.
MedLine Citation:
PMID:  506767     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The effect of various cardiovascular reflexes and reactions on the plethysmographically recorded penile volume in rabbit was investigated. Stimulation of the aortic nerve or direct stimulation of the carotid sinus produced increase in penile volume, while carotid occlusion produced decrease. Brief volume load or protoveratrine given into the right atrium produced increase in penile volume. Asphyxia, hypercapnia, hypoxia, cyanide and lobeline produced decrease in penile volume, while hypocapnia increased it. Moderate blood taps decreased penile volume, while hypocapnia increased it. Moderate blood taps decreased penile volume. With the exception of the response to asphyxia all these reactions required intact vasomotor nerves. Clonidine increased penile volume if vasomotor nerves were intact but decreased it if the penis was decentralized. Penile volume decreased in shivering animals but increased on warming. Carotid occlusion impaired erectile responses to hypogastric and pelvic nerve stimulation. In certain experiments this effect was more pronounced in the latter case. It is concluded that the medullary neuron pool responsible for penile vasomotor tone participates in general reflex cardiovascular homeostasis and that this may have implications for normal erectile responses.
Authors:
N O Sjöstrand; E Klinge
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Acta physiologica Scandinavica     Volume:  106     ISSN:  0001-6772     ISO Abbreviation:  Acta Physiol. Scand.     Publication Date:  1979 Jul 
Date Detail:
Created Date:  1980-01-24     Completed Date:  1980-01-24     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0370362     Medline TA:  Acta Physiol Scand     Country:  SWEDEN    
Other Details:
Languages:  eng     Pagination:  327-34     Citation Subset:  IM; S    
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MeSH Terms
Descriptor/Qualifier:
Animals
Arteries / innervation,  physiology
Blood Pressure
Cardiovascular Physiological Phenomena*
Cardiovascular System / innervation
Chemoreceptor Cells / drug effects
Clonidine / pharmacology
Hemorrhage / physiopathology
Hypercapnia / physiopathology
Male
Mechanoreceptors / physiology*
Muscle, Smooth / innervation
Penis / blood supply,  innervation,  physiology*
Plethysmography
Pressoreceptors / physiology*
Rabbits
Reflex*
Respiration
Temperature
Vasodilation / drug effects
Chemical
Reg. No./Substance:
4205-90-7/Clonidine

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


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