🫀 Heart Sound Quiz 🔥 | S1 & S2 Heart Sounds Question for NEET 2026 #Shorts
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What we cover
🧠 Quick NEET Biology Quiz!
Question: Which heart sound is produced by the closure of the AV valves? 🤔
✅ S1 (“Lub”) and S2 (“Dub”) Revision ✅ Human Physiology MCQ ✅ Most Expected NEET Question ✅ Quick 30-Second Concept Check
📚 Key Facts:
S1 (Lub) → Closure of Mitral & Tricuspid (AV) Valves S2 (Dub) → Closure of Aortic & Pulmonary Semilunar Valves
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