PPT-The Electrical System of the Heart

Cardiac Muscle Contraction Depolarization of the heart is rhythmic and spontaneous About 1 of cardiac cells have automaticity are selfexcitable Gap junctions ensure the heart contracts as a unit. R&A Enterprises is a world-class electric contractor, serving Colorado statewide bringing light, power and communications to large scale residential and commercial projects. Fire Prevention Week . 2012. Electrical Safety Foundation International. What is Fire Prevention Week?. Fire Prevention Week is observed each October to raise awareness of fire . safety. S. ponsored by the National Fire Protection Association (NFPA). Tips for Passing Inspection. Michael . Nasson. 303 Alumni – Mechanical Engineer. Electrical Components. System Design/Planning. Inspection Tips. Resources. Questions. Agenda. Basic Electrical Components. . Copyright © Texas Education Agency, 2011. All rights reserved.. 2. Objectives . Working safely in a construction environment. . Electrical Hazards in the workplace.. Conditions that affect the severity of electrical shock. Picture of the Week. Collider-Accelerator Department. 5-21-2013. Take 5 for Safety. Overview. Just . because you aren’t an electrician or electrical worker does not mean that you are exempt from electrical hazards. INTRODUCTION. Electrical diagrams are drawings in which lines, symbols, letter and number combinations are used to represent electrical circuits. . In some plants, electrical diagrams may also be called prints, or blue prints. Electrical Machines. 1. CHAPTER 1. ELECTROMECHANICAL ENERGY CONVERSION. Electrical Machines. 2. Introduction. Electro mechanical device converts energy between electrical and mechanical forms.. Electromechanical energy conversion theory helps in representing electromagnetic force or torque in terms of such parameters like electric current or displacement.. Electrical Safety Statistics. On average, there are 70 electrocution fatalities due to consumer products each year. . http://www.cpsc.gov/en/Research--Statistics/Electrocutions1/Electrocutions/. Approximately half of home electrical fires involve electrical distribution or lighting. sinoatrial. node. . AND . 6.2.U9 The . sinoatrial. node acts as a pacemaker. . AND . 6.2.U10 The . sinoatrial. node sends out an electrical signal that stimulates contraction as it is propagated through the walls of the atria and then the walls of the ventricles. Tips for Passing Inspection. George Mellors. Teacher Engineering former Industrial Engineer. Electrical Safety (Hazards). Electrical Components. System Design/Planning. Resources. Questions. Agenda. stimulated both the recruitment and the development of collateral vessels around the heart, providing newand permanent pathways for the delivery of blood and oxygen.The mid-1960s saw the development t 1 (EPS) AND ABLATION 2 How does the Heart Work ? Your heart works as both a mechanical pump and an electrical organ. It can beat because it produces electrical signals. These signals travel through Cardiac Conduction. The heart is composed of three specialized cells. Pacemaker, Purkinje, and Contractile. Pacemaker cells have automaticity that undergo spontaneous electrical depolarization that initiates an electrical impulse. The Purkinje cells conduct electrical impulses more quickly than other cells, and the Contractile cells compose the majority of the heart and contract when the electrical depolarization reaches them.. Aakanksha Bajpai. Assistant Professor. School of Health Sciences. Introduction-. Electrical stimulation is one of the oldest & most effective modalities used in physical therapy.. The stimulation of tissue for therapeutic purpose..