What Makes The Lub Dub Sound !!hot!! [RELIABLE – 2027]

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

Ever wondered what makes that classic ❤️ lub-dub ❤️ sound when you listen to a heartbeat? what makes the lub dub sound

It’s not the heart muscle contracting — it’s your ! Here’s a social media post (Instagram, Twitter, Facebook)

🔊 → 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

🔊 → 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.