Document Detail


Hepatic vein, hepatic parenchymal, and inferior vena caval mechanoreceptors with phrenic afferents.
MedLine Citation:
PMID:  8338164     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Dogs were anesthetized with pentobarbital sodium and placed on positive-pressure ventilation. The right phrenic nerve and/or its C5 branch were prepared for afferent recording. The hepatic veins, hepatic parenchyma, diaphragm, and inferior vena cava were studied for mechanoreceptors using light pressure and stroking as the stimuli. Mechanosensitive areas were found in the hepatic veins, hepatic parenchyma of the right medial lobe, and inferior vena cava. The hepatic vein and inferior vena caval receptors are located in the same 1- to 2-cm region as the sphincters that are found in these vessels. This study presents the first experimental evidence for the existence of hepatic vein receptors, hepatic parenchymal receptors, and inferior vena caval mechanoreceptors with phrenic afferents in the dog. These sensory areas of the circulation may be involved in the neural control of venous return as well as mediating changes in intrahepatic and portal venous blood pressure during normal respiration.
Authors:
D R Kostreva; S P Pontus
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  The American journal of physiology     Volume:  265     ISSN:  0002-9513     ISO Abbreviation:  Am. J. Physiol.     Publication Date:  1993 Jul 
Date Detail:
Created Date:  1993-08-26     Completed Date:  1993-08-26     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370511     Medline TA:  Am J Physiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  G15-20     Citation Subset:  IM; S    
Affiliation:
Department of Anesthesiology, Medical College of Wisconsin, Children's Hospital of Wisconsin, Milwaukee.
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MeSH Terms
Descriptor/Qualifier:
Animals
Dogs
Electrophysiology
Liver / innervation*
Liver Circulation*
Mechanoreceptors / physiology*
Neurons, Afferent / physiology*
Phrenic Nerve / cytology,  physiology*
Physical Stimulation
Veins / innervation
Vena Cava, Inferior / innervation*

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


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