First and Second Heart Sounds - Normal and Unsplit

Description

Now, you are auscultating at the Mitral valve area (Apex). The first heart sound has slightly greater intensity than the second heart sound. This is a normal first and second heart sound at 60 beats per minute.
  • The first heart sound is produced by the closing of the mitral and tricuspid valve leaflets.
  • The second heart sound is produced by the closing of the aortic and pulmonic valve leaflets.
  • The second heart sound is unsplit when the subject is holding his or her breath at peak expiration.
First and Second Heart Sounds - Normal and Unsplit

Maneuver: Supine
Chestpiece Position:Mitral
Chestpiece: Diaphragm

WaveForm

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