Tin tức

❤️ Closure of the mitral (M1) and tricuspid (T1) valves at the start of ventricular contraction.

Ever wondered what makes the classic “lub-dub” sound of your heartbeat? Let’s break it down, starting with 👇

#HeartSounds #S1 #Cardiology #MedStudent #NurseLife #PhysicalExam #HeartHealth #LubDub Would you like a shorter version for Twitter/X or a caption for Reels/TikTok?

🎧 Listen closely. The heart tells a story with every beat.