What Makes The Lub Dub Sound Best [Pro – GUIDE]

Here’s a social media post (Instagram, Twitter, Facebook) explaining the “lub-dub” sound:

If you hear a whoosh or swish instead of a clean lub-dub, that’s called a heart murmur — often harmless, but worth getting checked out. what makes the lub dub sound

🔊 → Your aortic & pulmonic valves close after the lower chambers relax. This prevents blood from leaking back into the heart. Here’s a social media post (Instagram, Twitter, Facebook)

👂 The pause between lub and dub? That’s your heart filling with blood. The pause after dub? That’s your heart resting before the next beat. Here’s a social media post (Instagram

🔊 → Your mitral & tricuspid valves close right after the heart squeezes blood to the lungs and body. This stops blood from flowing backward into the upper chambers.