What Makes The Lub Dub Sound |top| -

It’s not the heart muscle contracting — it’s your !

Here’s the quick breakdown:

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 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. It’s not the heart muscle contracting — it’s your

#HeartHealth #LubDub #CardiologyExplained #ScienceFacts #Anatomy what makes the lub dub sound