ECG: Electrical Activity & Wave Formation Mechanisms Explained скачать в хорошем качестве

ECG: Electrical Activity & Wave Formation Mechanisms Explained

⚡ Understanding ECG: Electrical Activity & Wave Formation How does the electrical activity of the heart create the characteristic waves on an ECG? In this first part of our ECG series, we break down the mechanism of wave formation, explaining the role of depolarization, repolarization, and conduction pathways. Perfect for medical students, USMLE prep, and healthcare professionals looking to master ECG interpretation! What You’ll Learn in This Video: ✔️ How the heart’s electrical system generates an ECG tracing ✔️ The role of the SA node, AV node, Bundle of His, and Purkinje fibers ✔️ Mechanisms behind the formation of P wave, QRS complex, and T wave ✔️ How depolarization and repolarization influence ECG readings ✔️ High-yield mnemonics & tips for ECG interpretation on exams ⏰ Timestamps 0:00 Basic concepts 1:13 Cardiomyocyte electric activity (action potentials) 2:05 Resting state ( Isoelectric line) 2:26 Depolarization (R wave) 3:06 Early rapid repolarization 3:26 Plateau phase ( ST interval) 4:03 Final rapid repolarization ( T wave) 4:26 Comparison depolatization R wave vs repolarization T wave 5:13 Absolute refractory period 5:28 Relative refractory period ( Mechanism of premature ventricular beat) #usmle #step1 #step2 #medicine #pathology #physiology #education #medicalschool #pharmacology #biochemistry #highyield #lab ECG wave formation explained ECG basics for medical students cardiac conduction system and ECG how P wave QRS complex and T wave form ECG interpretation USMLE high-yield SA node AV node conduction pathway depolarization and repolarization ECG QRS complex and ventricular depolarization PR interval and AV node delay electrocardiogram explained simply