TY - CHAP M1 - Book, Section TI - Electrophysiology of the Heart A1 - Elmoselhi, Adel A1 - Seif, Mohamed A2 - Elmoselhi, Adel PY - 2017 T2 - Cardiology: An Integrated Approach AB - Learning ObjectivesBy the end of the chapter the student will be able to:Draw a typical action potential in a ventricular muscle and a pacemaker cell.Describe the ionic basis of the phases of the action potential.Explain the significance of the long duration of the cardiac action potential and the resultant long refractory period.Describe the normal sequence of cardiac activation and conduction and predict the consequence of its abnormalities.Discuss the significance of “overdrive suppression” in a natural pacemaker and the abnormalities leading to an “ectopic pacemaker.”Explain the effects of the sympathetic and parasympathetic nervous system on the heart rate, cardiac conduction, and contractility.Describe the main components of a normal ECG recording, their significance, and abnormalities. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - accessmedicine.mhmedical.com/content.aspx?aid=1146873789 ER -