ELECTROCARDIOGRAPHY
Fall  2003
The purpose of this unit is to introduce basic Electrocardiography.

Learning objectives:
  • Anatomy of the Conduction System
  • Electrophysiology
  • Events of Conduction
  • Normal ECG Tracing
  • Electrophysiology of a Normal ECG Tracing
  • Lead Placement and Einthoven's Triangle
  • ECG Analysis
    • Rate & Rhythm
    • Normal Complexes
    • Axis
    • Intervals
    • Segments
Resources:  To access the ECG CD Rom:
1.   Use the UCS-PC Windows Cluster (Room 154 in HPER Build)
2.    Log in with your user name and password
3.   Click on  the Start bar at the bottom left hand corner 
4.   Move cursor toup to Programs
5.   Move cursor to Departmentally Sponsored Programs
6.   Move cursor to Interactive ECG
7.   Move cursor to Interactive ECG CD Rom
      
Terms to Remember

 Automaticity -

 the unique property of the heart which inables it to depoliarize itself. That is, generate it's own electrical current.
 Autorhymicity -  continuous sponteanous depolarization leading to contraction
Functional Syncythium

A group of cells that behave like a single cell. Stimulate one cell in this group and all the cells will contract as though they have all been stimulated. This unique property allows the cells of heart to work togehter to pump the blood out. Two functional syncythium exist:

  • atrial
  • ventricular

each acts like a functional syncythium, but are several smaller syncythium
Illustrated functional Syncythium
Atrial
Ventrucular
   
Action Potential
Animation of the Sodium & Potassium Channels
Animation of the Action Potential
Advanced Theory of Action Potential		  
   

Web Sites for Electrocardiography
Pediatric Electrocardiography  

This page was last updated 30 August 2004
URL: http://www.indiana.edu/~k561
Webmaster: Janet P. Wallace, PhD, FACSM
Contact:wallacej@indiana.edu
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