Document Detail

Differential sympathetic regulation of automatic, conductile, and contractile tissue in dog heart.
MedLine Citation:
PMID:  3189569     Owner:  NLM     Status:  MEDLINE    
Sympathetic pathways mediating chronotropic, dromotropic, and inotropic responses during ansae subclavia stimulation were determined by sequential dissection around major cardiac vessels. Right sympathetic (RS) projections influencing ventricular contractile force converge at the common pulmonary artery and within the pulmonary artery nerves (PAN). RS projections influencing left atrial contractile force course within the PANs. RS pathways to pacemaker and right atrial contractile tissue were localized between the superior vena cava and ascending aorta. RS projections influencing conductile tissue converge between the common pulmonary artery and proximal right pulmonary artery. Left sympathetic (LS) projections to ventricular contractile tissue were localized at the common pulmonary artery, within the PANs, and in the ventral lateral cardiac nerve (VLCN). LS pathways influencing heart rate and conductile tissue were localized at the left pulmonary artery and coursing between the right pulmonary artery and left superior pulmonary vein. LS projections to atrial contractile tissue were localized within the PANs and coursing between the right pulmonary artery and left superior pulmonary vein. We conclude that there are parallel, yet distinct, projections of sympathetic efferents to automatic, conductile, and contractile tissue of the canine heart.
J L Ardell; W C Randall; W J Cannon; D C Schmacht; E Tasdemiroglu
Related Documents :
952269 - Masked abnormal drainage of the inferior vena cava into the left atrium.
10709839 - Narrowing of the upper abdominal inferior vena cava in patients with elevated intraabdo...
21042449 - Case report: completely unroofed coronary sinus with a left superior vena cava draining...
702769 - Persistent left superior vena cava draining into the left atrium associated with the at...
7282429 - Course of the inferior vena cava on lateral films exposed in different positions.
2781029 - Right phrenic nerve: anatomy, ct appearance, and differentiation from the pulmonary lig...
23365619 - Bayes clustering and structural support vector machines for segmentation of carotid art...
24775259 - Off-pump coronary artery bypass grafting and other minimally invasive techniques.
2240869 - Lower extremity revascularization via the lateral plantar artery.
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  The American journal of physiology     Volume:  255     ISSN:  0002-9513     ISO Abbreviation:  Am. J. Physiol.     Publication Date:  1988 Nov 
Date Detail:
Created Date:  1988-12-14     Completed Date:  1988-12-14     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0370511     Medline TA:  Am J Physiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  H1050-9     Citation Subset:  IM    
Department of Physiology, University of South Alabama, Mobile 36688.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Aorta / innervation
Electric Stimulation
Heart / innervation*,  physiology
Heart Atria / innervation
Heart Conduction System / physiology
Heart Rate
Heart Ventricles / innervation
Myocardial Contraction
Pulmonary Artery / innervation
Pulmonary Veins / innervation
Sympathetic Nervous System / physiology*
Vena Cava, Superior / innervation
Grant Support

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

Previous Document:  Total and regional blood flows in vascularized skeletal muscle grafts in rabbits.
Next Document:  Acute postburn edema: role of strongly negative interstitial fluid pressure.