Abstract
In the past, many theories have been advanced to explain the origins of sounds during the cardiac cycle. These included simple concepts of sound originating from the actual contact of valve cusps upon closure. When it was realized that the strength of contraction of the left ventricle had a significant effect on the intensity of the first heart sound, the myocardial theory of the origin of the sound was postulated.
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© 2006 Springer Science+Business Media, LLC
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Ranganathan, N., Sivaciyan, V., Saksena, F.B. (2006). Heart Sounds. In: Ranganathan, N., Sivaciyan, V., Saksena, F.B. (eds) The Art and Science of Cardiac Physical Examination. Contemporary Cardiology. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-59745-023-2_6
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DOI: https://doi.org/10.1007/978-1-59745-023-2_6
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