Structured Summary
Abstract
The sounds heard over the cardiac region produced by the functioning of the heart. There are four distinct sounds: the first occurs at the beginning of SYSTOLE and is heard as a lubb sound; the second is produced by the closing of the AORTIC VALVE and PULMONARY VALVE and is heard as a dupp sound; the third is produced by vibrations of the ventricular walls when suddenly distended by the rush of blood from the HEART ATRIA; and the fourth is produced by atrial contraction and ventricular filling.
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Classification
Broader headings
Related Concepts
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See Also
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Synonyms
7 entry terms
- Cardiac Sounds
- Cardiac Sound
- Heart Sound
- Sound, Cardiac
- Sound, Heart
- Sounds, Cardiac
- Sounds, Heart
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Aspects Covered
6 allowable subheadings
Indexed with the subheadings drug effects, ethics, genetics, immunology, physiology, radiation effects.
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Indexing Annotation
note category: do not confuse with HEART MURMURS, a disease concept
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History Note
91(75); was see under HEART AUSCULTATION 1963-90; was in Cat E 1963-90
MeSH Hierarchy
Tree Number
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NLM Classification
WG 106
AMA Style
References
- National Library of Medicine. Heart Sounds. Medical Subject Headings (MeSH). 2026. Unique ID D006347. http://id.nlm.nih.gov/mesh/2026/D006347
- Heart Sounds. In: Wikipedia. https://en.wikipedia.org/wiki/Heart_sounds
- Heart Sounds. In: Wikidata. https://www.wikidata.org/wiki/Q967103