PPT-Conduction of the Heart Cardiac Cycle

Learning Objectives Explain how the heart works in relation to the conduction system Explain the cardiac cycle Explain how the two systems are linked How does the heart contract Heart is composed of cardiac muscle. Refers to the events of 1 complete heart beat . Both atria & ventricles contract then relax (0.8 sec if beating 75x/min). Key terms to know. Diastole. - relaxation. Systole. - contraction. Lub-dub. Heart Wall. Three layers. Epicardium. Outside layer. AKA visceral pericardium. Pericardium. Visceral pericardium or epicardium. Next to heart. Actually part of heart wall. Parietal pericardium. Outside layer. Primary Teaching . 2015 viva – Draw and label the membrane potential of normal pacemaker tissue.. 2015 viva – What mechanisms can . tachyarrythmias. be generated?. Physiology. Cardiac action potential . Lab 2 Activities. Anatomy of the internal conduction pathway of the heart. . Biopac Exercise L05-ECG-1: .  . Normal electrocardiogram (including the names of all waves, intervals, and segments, what they mean, and how they correlate to the parts of the cardiac cycle). . AND RHYTHM. Dr. . Abdollahi. 4/11/2014. 1. The. ECG . is a valuable tool for diagnosing . disturbances of . cardiac conduction and rhythm. . Ambulatory ECG . monitoring . (. Holter. monitoring) is useful in documenting . : One complete heartbeat. . The contraction of a heart chamber is called . systole. . the relaxation of a chamber is called . diastole. . . . During ventricular systole, the aortic valve __________. Lecture 11.0 – Cardiovascular System Genalin Lagman Taguiam Lecturer Course Outcomes On completion of the week’s activity, the students should be able to identify the structures in a given diagram of the heart; The Cardiac Conduction System is a group of specialised cells located in the wall of the heart which send electoral impulses to the cardiac muscle, causing it to contract. What happens as the heart beats?. ECG. The Basics And Beyond. I have no conflicts of interest. . Pearls. Treat the patient not the paper.. Electrical activity triggers mechanical activity. No electrical activity = no mechanical activity. Understandings. U.D.4.1: structure of cardiac muscle cells allows propagation of stimuli through the heart wall. . U.D.4.2: signals from the sinoatrial node that cause contraction cannot pass directly from atria to ventricles.. The cardiac cycle and coronary flow. Conduction System. https://. www.youtube.com/watch?v=A2YoGyNhAns. Coronary flow. https://. www.youtube.com/watch?v=tBQa8IBzP6I. Summary. The conduction system of the heart is composed . Transition 2020. 23/6/2020. The Conduction System of the heart.. The Conduction system . We are going to learn the step by step process of how a single heart beat occurs.. Leaning Outcomes. Students will. 2 3 septum (Fig. and Supplementary Figs and ). ese regions, previously described as paranodal, could also be dierentiated from the working myocardium in the micro-CT data, appearing as lower atten Cardiac arrhythmias are the most common cause of death in patients with a myocardial infarction or terminal heart failure. . Normal sinus rhythm is dependent on generation of an impulse in the normal sinoatrial (SA) node pacemaker and its conduction through the atrial muscle, through the atrioventricular (AV) node, through the Purkinje conduction system, to the ventricular muscle.