Why Does The Heart Make A Lub Dub Sound [2021]

: S1 is typically lower-pitched, duller, and longer-lasting than the second sound. The Second Sound: "Dub" (S2)

The short pause between the "lub" and the "dub" is (ventricles squeezing). The longer pause after the "dub" before the next "lub" is diastole (ventricles relaxing and filling). That rhythm is what you feel as your pulse. why does the heart make a lub dub sound

The "dub" sound, on the other hand, is produced by the closure of the aortic and pulmonary valves. These valves are located at the base of the aorta and pulmonary artery, respectively, and prevent backflow into the ventricles. When the ventricles relax, the semilunar valves close, generating a second, softer sound, referred to as S2. : S1 is typically lower-pitched, duller, and longer-lasting

The familiar "lub-dub" sound isn't the heart muscle contracting, nor is it blood simply sloshing around. It is the sound of . That rhythm is what you feel as your pulse

If a review doesn't mention what goes wrong, it isn't complete. If a valve doesn't close tightly (regurgitation) or doesn't open wide enough (stenosis), the blood creates turbulence—a "sloshing" or "whooshing" sound called a . Instead of a clean "Lub-Dub," you might hear a "Lub-Whoosh-Dub."