Often indicates a stiff or thickened heart wall, commonly from long-term high blood pressure. "ken-tuck-y" S3 Gallop Just after S2

Key Points * The heart tone “lub,” or S1, is caused by the closure of the mitral and tricuspid atrioventricular (AV) valves at the... Medicine LibreTexts Heart sounds - Wikipedia In healthy adults, there are two normal heart sounds, often described as a lub and a dub that occur in sequence with each heartbea... Wikipedia Heart sounds - Wikipedia In addition to these normal sounds, a variety of other sounds may be present including heart murmurs, adventitious sounds, and gal... Wikipedia Heart sounds - Wikipedia "ta-lub-dub" or "a-stiff-wall" It is a sign of a pathologic state, usually a failing or hypertrophic left ventricle, as in systemi... Wikipedia What Causes the Heart Sounds Heard with a Stethoscope? Feb 26, 2026 —