Cardiac Conduction System And Ecg Homework Assignment

This study source was downloaded by 100000802832151 from CourseHero.com on 11-15-2022 12:30:04 GMT -06:00https://www.coursehero.com/file/134321388/Cardiac-Cond-System-and-ECG-Student-Answer-Sheetdocx/Powered by TCPDF (www.tcpdf.org) Cardiac Conduction System and ECG Homework AssignmentReview Questions - answer the following questions completely.1. What is the cardiac conduction system?It is the electrical system of the heart2. What are the three crucial parts of the cardiac conduction system?Sinoatrial Node, Atrioventricular Node, His-Purkinje System3. What is the function of the SA node?It is the pacemaker of the heart; it sends electrical impulse causing the heart to beat4. What is the function of the AV node?Receives the electrical impulses of the SA Node5. What is the function of the His-Purkinje System?Carries electrical impulses to the ventricles, causing contraction6. Explain how an electrical impulse created in the SA node eventually leads to the contraction of the ventricles.Sa node begins the contraction of both atria by sending electrical impulses, this causes them to contract and then reach the AV node, the Av node continues the impulse by sending it the bundle of his right and left bundle branches, then into the purkinje fibers causing the ventricles to contract7. Explain how depolarization and repolarization occur. How do these relate to muscle contraction and relaxation?As the flood of ions