What Is Lub Dub Sound |verified| Jun 2026

If your heart goes Lub-Dub... (pause) ... Lub-Dub , what is happening during that pause?

In simple terms:

People often ask: Why is it "lub-dub" and not "dub-lub"? what is lub dub sound

For more detailed animations and explanations, you can watch the Khan Academy's "Lub Dub" video or Osmosis from Elsevier on Facebook. 17.4C: Heart Sounds - Medicine LibreTexts If your heart goes Lub-Dub

We have all heard it—that steady, rhythmic thumping inside our chests. But have you ever wondered what actually makes that sound? Contrary to popular belief, your heart isn't just squishing blood around quietly; it is a mechanical engine with moving parts that snap shut to keep your blood flowing in the right direction. what is lub dub sound