Inward and Outward Currents and Cardiac Discontinuous Conduction

  • Mary B. Wagner
  • Ronald W. Joyner
Part of the Basic Science for the Cardiologist book series (BASC, volume 12)


In the normal heart, most of the individual cardiac cells are well coupled to adjacent cells through gap junctions. Because of this, the myocardium is referred to as an electrical syncytium such that excitation occurring at any location is able to spread throughout all parts of the heart which are not refractory to stimulation. The process of action potential propagation in the heart has generally been considered as a multi-dimensional analog of the continuous one-dimensional propagation observed in unmyelinated nerve fibers.


Outward Current Atrial Cell Conduction Delay Cell Pair Ventricular Cell 
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Copyright information

© Springer Science+Business Media New York 2002

Authors and Affiliations

  • Mary B. Wagner
    • 1
  • Ronald W. Joyner
    • 1
  1. 1.Emory UniversityAtlanta

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