Document Detail


Localization of sympathetic postganglionic neurons of physiologically identified cardiac nerves in the dog.
MedLine Citation:
PMID:  6271849     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Cardiac nerves were identified physiologically and injected with horseradish peroxidase in 38 dogs. Retrogradely labeled neurons were present in the greatest number in the middle cervical ganglion, whereas fewer labeled neurons were present in the stellate ganglion. Only occasional neurons in the superior cervical ganglion were labeled, and no labelphysiologically and injected with horseradish peroxidase in 38 dogs. Retrogradely labeled neurons were present in the greatest number in the middle cervical ganglion, whereas fewer labeled neurons were present in the stellate ganglion. Only occasional neurons in the superior cervical ganglion were labeled, and no labelphysiologically and injected with horseradish peroxidase in 38 dogs. Retrogradely labeled neurons were present in the greatest number in the middle cervical ganglion, whereas fewer labeled neurons were present in the stellate ganglion. Only occasional neurons in the superior cervical ganglion were labeled, and no labeled cells were found in the T3 to T6 paravertebral ganglia or in the ganglia contralateral to the nerve injected. following injections into specific cardiac nerves, retrograde labeling was widespread within the middle cervical ganglion, and the distributions of labeled neurons from different nerves overlapped considerably. In the middle cervical ganglion there was little or no regional grouping of cells projecting to specific cardiac nerves. within the stellate ganglion, however, te cardiac-sympathetic cells were clustered primarily at the cranial pole near toe origin of the ventral and dorsal ansae. Mediastinal ganglia and ganglia located in cardiac nerves were frequently as heavily labeled as the ipsilateral stellate ganglion. The occurrence of heavy labeling in mediastinal and cardiac nerve ganglia indicates that these hitherto unreported ganglia play a significant role in cardiac neural regulation. These data imply that the organization of sympathetic neurons controlling the heart is much more complex than has previously been considered.
Authors:
J A Armour; D A Hopkins
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of comparative neurology     Volume:  202     ISSN:  0021-9967     ISO Abbreviation:  J. Comp. Neurol.     Publication Date:  1981 Oct 
Date Detail:
Created Date:  1982-01-28     Completed Date:  1982-01-28     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0406041     Medline TA:  J Comp Neurol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  169-84     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Cervical Plexus / physiology
Cranial Nerves / physiology
Dogs
Female
Ganglia, Sympathetic / physiology*
Heart / innervation*
Horseradish Peroxidase / diagnostic use
Male
Neurons / physiology*
Stellate Ganglion / physiology
Synaptic Transmission
Vagus Nerve / physiology
Chemical
Reg. No./Substance:
EC 1.11.1.-/Horseradish Peroxidase

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


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