PPT-Cardiac Conduction System

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. Cardiac Conduction Effects Laboratory studies, both in vivo and in vitro, have demonstrated that methadone inhibits cardiac potassium channels and prolongs the QT interval. Cases of QT interval prolo Physiology . of the Heart. Mechanism and Events of Contraction. 1) Influx of sodium ions from the extracellular fluid into the cells initiates the action potential by opening voltage-regulated sodium channels . 3.1 …………. Introduction. 3.2 …………. Biot and Fourier Number. 3.3 …………. . Lumped heat capacity analysis. 3.4 …………. Time constant and response of a thermocouple. 3.5 …………. Transient. ARRHYTHMIA. 2. 2. CLINICAL INCIDENCE. 80% cardiac arrhythmia → after M.I. 50% cardiac arrhythmia → during anesthesia. 25% cardiac arrhythmia → treatment with digitalis . Cardiac arrhythmia need to be treated when serious haemodynamic derangement expected. 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). . Clinical Scenario. Case 1: . 76 year old man with head and neck cancer s/p Radical dissection with PMH of Chronic Renal Failure and patient stated morphine allergy in 10/10 pain.. Case 2: . 25 year old woman with long standing history of narcotic use for chronic back pain presenting to clinic requesting cheaper medication for pain control.. Biology 12. Did you know…. Your heart beats about 100,000 times a day. Heart Dissection. Can we find:. Inferior vena cava. Superior vena cava. Right atria. Right ventricle. Tricuspid valve. Pulmonary artery. 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 . 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; 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. 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.