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HEART SOUNDS AND CARDIAC MURMURS.

HEART SOUNDS AND CARDIAC MURMURS. The study of heart sounds and cardiac murmurs, with reference to their diagnosis by physical signs, requires an accurate knowledge of the anatomy, and physiological mechanism of the heart. By heart sounds we mean the normal sounds produced by the action of the heart,while new or additional or adventitious sounds are called cardiac murmurs. Murmurs are not modifications of the normal heart sounds, but are new sounds, which are added to,or take the place of the normal sounds,on account of mechanical defects in the action of the heart. These mechanical defects are usually the results of pathological lesions. The praecardial region or prœcardia, is that part of the surface of the chest, which immediately overlies the heart. The upper boundary of this space, which corresponds to the base of the heart, is a horizontal line drawn across the sternum at the level of the third costal cartilage. The lower boundary http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png JAMA American Medical Association

HEART SOUNDS AND CARDIAC MURMURS.

JAMA , Volume XVIII (22) – May 28, 1892

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Publisher
American Medical Association
Copyright
Copyright © 1892 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.
ISSN
0098-7484
eISSN
1538-3598
DOI
10.1001/jama.1892.02411260008001c
Publisher site
See Article on Publisher Site

Abstract

The study of heart sounds and cardiac murmurs, with reference to their diagnosis by physical signs, requires an accurate knowledge of the anatomy, and physiological mechanism of the heart. By heart sounds we mean the normal sounds produced by the action of the heart,while new or additional or adventitious sounds are called cardiac murmurs. Murmurs are not modifications of the normal heart sounds, but are new sounds, which are added to,or take the place of the normal sounds,on account of mechanical defects in the action of the heart. These mechanical defects are usually the results of pathological lesions. The praecardial region or prœcardia, is that part of the surface of the chest, which immediately overlies the heart. The upper boundary of this space, which corresponds to the base of the heart, is a horizontal line drawn across the sternum at the level of the third costal cartilage. The lower boundary

Journal

JAMAAmerican Medical Association

Published: May 28, 1892

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