Strontium as the Substitute for Calcium in the Excitation-Contraction Coupling of Crayfish Muscle Fibers

  • Moto Matsumura

Abstract

Extensive studies on the excitation-contraction coupling of skeletal muscle have been carried out, and were reviewed in the papers of Ebashi (1) and of Endo (2). Most of the review articles were concerned with the vertebrate skeletal muscle. The peculiar properties of the crustacean muscle were described by Zachar (3), Atwood (4), and Reuben et al. (5). Because the crustacean muscle usually does not respond to the electrical stimulus with the all-or-none-type action potential, the term “electromechanical coupling” seems to be more suitable than the “excitation-contraction coupling.” However, the latter term has now become customary and the usage of this term will be continued also in this paper [see Sandow (6)].

Keywords

Permeability Magnesium Ethylene Glycol Barium Caffeine 

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Copyright information

© Plenum Press, New York 1981

Authors and Affiliations

  • Moto Matsumura
    • 1
  1. 1.Department of PhysiologyKawasaki Medical SchoolKurashiki City, OkayamaJapan

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