Third Heart Sound (S3) Gallop Auscultation Practice

Third Heart Sound (S3) Gallop

Research studies have demonstrated that listening to a heart sound for 2-3 minutes can help students master auscultation. For textual descriptions, waveforms and heart animations, please use our courses on this website.

auscultation sound from lesson
waveform


Listening Tips

S1: Reduced intensity
Systole:
S2: Increased intensity
Diastole: S3 early in diastole, low-pitched, heard during expiration


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Sv: 1 ; 7/30/2026 11:34:40 PM




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