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. 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 . Transfer of Energy as Heat. Energy moves as heat in three ways. Heat is always a transfer of energy from objects at a higher temperature to a lower temperature. There are 3 different ways this transfer of energy can happen. Heat Transfer. E. nergy always moves when it is near something that has less energy(Heat is energy). EXAMPLE: Hot . objects in a cooler room will cool to room . temperature, and cold . objects in a warmer room will heat up to room temperature.. Conduction problems may involve multiple directions and time-dependent conditions. Inherently complex – Difficult to determine temperature distributions. One-dimensional. . steady-state. models can represent accurately numerous engineering systems. 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. 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 . 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. ComputersConduction cooling for modular embedded computers have been used for many years in applications where air cooling is not appropriate Standardization efforts in that domain have early helped t commonly occur in the presence of preexisting heart disease. the most common cause of death in patients with a myocardial infarction . . the most serious manifestation of digitalis toxicity, anesthesia, hyperthyroidism, and electrolyte disorders. 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