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Circulatory and Respiratory Physiological Phenomena > Cardiovascular Physiological Phenomena > Hemodynamics > Heart Sounds

Preferred term

Heart Sounds  

Type

  • Topical Descriptor

Broader concept

Related concepts

Entry terms

  • Cardiac Sound
  • Cardiac Sounds
  • Sound, Cardiac
  • Sounds, Cardiac

Note

  • note category: do not confuse with HEART MURMURS, a disease concept

Scope note

  • 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.

History note

  • 91(75); was see under HEART AUSCULTATION 1963-90; was in Cat E 1963-90

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URI

http://www.yso.fi/onto/mesh/D006347

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