Normal Things

  • Roger W. Jelliffe


The abbreviation “EKG” comes from the German word “elektrokardiogramm”, the name given to this record by Dr. Willem Einthoven, the Dutch physician who invented the string galvanometer and this type of electrical record of the heartbeat. It consists of P, Q, R, S, T, and U waves. The P wave is associated with depolarization of the atria, after which they contract. The normal P wave duration is up to 0.12 seconds.


Purkinje Cell Minus Cell Purkinje Fiber Precordial Lead Downward Deflection 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag New York, Inc. 1990

Authors and Affiliations

  • Roger W. Jelliffe
    • 1
  1. 1.Laboratory of Applied Pharmacokinetics, School of MedicineUniversity of Southern CaliforniaLos AngelesUSA

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