Ion channels in the heart

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Abstract

Optimal cardiac function depends on proper timing of excitation and contraction in various regions of the heart, as well as on appropriate heart rate. This is accomplished via specialized electrical properties of various components of the system, including the sinoatrial node, atria, atrioventricular node, His-Purkinje system, and ventricles. Here we review the major regionally determined electrical properties of these cardiac regions and present the available data regarding the molecular and ionic bases of regional cardiac function and dysfunction. Understanding these differences is of fundamental importance for the investigation of arrhythmia mechanisms and pharmacotherapy.

Original languageEnglish (US)
Pages (from-to)1423-1464
Number of pages42
JournalComprehensive Physiology
Volume5
Issue number3
DOIs
StatePublished - Jul 1 2015

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ASJC Scopus subject areas

  • Physiology
  • Physiology (medical)

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