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General Introduction

  • Ronald P. Rubin

Abstract

All living cells are bathed in extracellular fluid that differs in composition from the intracellular milieu. Activation of cells is characterized by alterations in cell membrane permeability and the resultant transmembrane movement of ions. The crucial membrane components are the various “channels” or “gates” that define the permeability or conductances of various ions. Sodium, potassium, magnesium, and calcium all play significant roles in biological activity, but calcium, because of its unique chemical properties, is the most crucial in terms of possessing a wide diversity of functions. The importance of this cation is underscored by the fact that no electrolyte is under more vigorous control in the body than calcium.

Keywords

Calcium Entry Acrosome Reaction General Introduction Cellular Calcium Adrenal Chromaffin Cell 
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

© Plenum Press, New York 1982

Authors and Affiliations

  • Ronald P. Rubin
    • 1
  1. 1.Medical College of VirginiaVirginia Commonwealth UniversityRichmondUSA

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