🫀 ECG Made Simple – Part 2: Understanding Electrical Vectors In this video, we’ll learn how ventricular depolarization spreads through the myocardium, why the left ventricle dominates the ECG signal, and how lead orientation determines whether a QRS complex appears positive, negative, or biphasic. This series is designed for medical students and anyone starting ECG interpretation — one concept at a time. #ECG #ECGBasics #ECGMadeSimple #MedicalStudents #MedEd