10/11/2026
Caption: Ever wondered how every single heartbeat is powered? 🫀⚡ Watch the heart's electrical wiring in action: the impulse starts at the SA Node, pauses at the AV Node, races down the Bundle of His and Bundle Branches, and spreads through the Purkinje Fibers to trigger ventricular contraction. Save this high-yield breakdown for your next cardiology exam!
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