❤️ Closure of the mitral (M1) and tricuspid (T1) valves at the start of ventricular contraction.
🔊 It marks the beginning of systole (ventricular contraction). heart sound s1
Here’s a social media post about — suitable for Instagram, LinkedIn, Facebook, or a medical education page. 🫀 Know Your Heart Sounds: S1 – The “Lub” ❤️ Closure of the mitral (M1) and tricuspid
Next time you listen to a heart, remember: says “time to squeeze” — and it all starts with valve closure. heart sound s1