Lub Dub Heart Sound Upd Jun 2026

🔹 This is the echo of the aortic and pulmonary valves closing. It marks the moment your heart relaxes and refills, getting ready for the next round.

It’s the only instrument that plays you an entire lifetime's worth of songs without ever taking a break. Take care of the drummer. 🥁❤️ lub dub heart sound

My favorite song? The one playing inside my chest. 🎶 🔹 This is the echo of the aortic

The "dub" sound is caused by the closure of the aortic and pulmonary valves, which are located between the ventricles and the arteries that carry blood out of the heart. When the ventricles relax, these valves close, producing the "dub" sound. these valves close