#yt:quality=high #Atrial Fibrillation (Disease Or Medical Condition) #Atrium (Anatomical Structure) #A fib #AF #anatomy #animated #animation #biology #blood flow #brain #cardiac arrhythmias #cardiology #cardiovascular #carotid artery #cerebrovascular diseases #clotting #conditions #diseases #healthcare #heart #heartbeat #ischemia #ischemic #medical #medicine #problems #stenosis #stroke #thrombosis #thrombus #vascular system #SA node #ECG strip #ekg strips #ecg interpretation #ekg interpretation #dysrhythmia