guyton chapter 10 part 3 of 3

0:00 Introduction 0:05 Control of Excitation & Conduction 0:08 Concept of Pacemaker 1:19 Why SA node is pacemaker? 2:40 Abnormal/Ectopic Pacemaker 3:00 Causes of Ectopic Pacemaker 4:58 Stokes-Adams Syndrome 7:14 Role of Purkinji System 7:50 Nervous Control 8:45 Role of Parasympathetic Nervous System 10:47 Ventricular escape 11:13 Mechanism of Vagal Stimulation 14:38 Sympathetic Stimulation 15:14 Mechanism of Sympathetic Stimulation