Qt interval Memes

When your cardiology pickup lines are too specific for Tinder. The AV node delay is crucial for proper heart function - it ensures the atria finish contracting before ventricles start, maximizing cardiac output. And that QT interval? It's measuring ventricular depolarization and repolarization time. Nothing says romance like perfectly timed electrical cardiac cycles. Next time just try "you make my heart skip a beat" instead of sounding like you're preparing for boards.