"Heart Sounds" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
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.
- Heart Sounds
- Heart Sound
- Sound, Heart
- Sounds, Heart
- Cardiac Sounds
- Cardiac Sound
- Sound, Cardiac
- Sounds, Cardiac
Below are MeSH descriptors whose meaning is more general than "Heart Sounds".
Below are MeSH descriptors whose meaning is more specific than "Heart Sounds".
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