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PAROXYSMAL TACHYCARDIA IN CHILDHOOD

PAROXYSMAL TACHYCARDIA IN CHILDHOOD The function of originating and transmitting the automatic impulses which result in the contraction of the heart belongs to certain specialized tissues which represent the remnant of the primitive cardiac tube. These excitation waves have been shown to arise at the junction of the superior vena cava with the right auricle, in the upper portion of the sino-auricular node. From here they pass through the node and are transmitted by numerous paths to the auricular musculature and to the atrioventricular node described by Tawara. From this node stimuli pass through the bundle of His and into its branches, which divide and subdivide until their ramifications form an intricate network by means of which the impulses are rapidly distributed to the ventricular myocardium. As impulses travel downward through these conducting fibers, the heart responds by sequential contractions of the auricles and ventricles. Under certain conditions, however, any portion of this conducting http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png American Journal of Diseases of Children American Medical Association

PAROXYSMAL TACHYCARDIA IN CHILDHOOD

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References (1)

Publisher
American Medical Association
Copyright
Copyright © 1917 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.
ISSN
0096-8994
eISSN
1538-3628
DOI
10.1001/archpedi.1917.01910100056005
Publisher site
See Article on Publisher Site

Abstract

The function of originating and transmitting the automatic impulses which result in the contraction of the heart belongs to certain specialized tissues which represent the remnant of the primitive cardiac tube. These excitation waves have been shown to arise at the junction of the superior vena cava with the right auricle, in the upper portion of the sino-auricular node. From here they pass through the node and are transmitted by numerous paths to the auricular musculature and to the atrioventricular node described by Tawara. From this node stimuli pass through the bundle of His and into its branches, which divide and subdivide until their ramifications form an intricate network by means of which the impulses are rapidly distributed to the ventricular myocardium. As impulses travel downward through these conducting fibers, the heart responds by sequential contractions of the auricles and ventricles. Under certain conditions, however, any portion of this conducting

Journal

American Journal of Diseases of Children – American Medical Association

Published: Oct 1, 1917

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