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Intracellular pH and Energy Changes in Muscle

  • Nancy A. Curtin
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 37)

Abstract

Intracellular pH (pHi) and buffering power of unstimulated sartorius muscle (frog) were measured with pH-sensitive microelectrodes. The mean pHi for muscle was about 0.3 units more acid than the extracellular pH in the range 7.0 to 7.2. The buffer power was 44.0 ± SE 7.1 mM/pH unit for 19 fibres with pHi 8.83 ± SE 0.05.

Keywords

Hospital Medical School Frog Skeletal Muscle Additional Buffer Contractile Mechanism Intracellular Microelectrode 
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References

  1. Bolton, T.B. and Vaughan-Jones, R.D. (1977). Continuous and direct measurement of intracellular chloride and pH in frog skeletal muscle. J. Physiol. 270: 801–833.PubMedGoogle Scholar
  2. Curtin, N.A. and Woledge, R.C. (1978). Energy changes and muscular contraction. Physiol. Rev. 58: 690–761.Google Scholar
  3. Thomas, R.C. (1978). Ion-sensitive Intracellular microelectrodes. London: Academic Press.Google Scholar

Copyright information

© Plenum Press, New York 1984

Authors and Affiliations

  • Nancy A. Curtin
    • 1
  1. 1.Department of PhysiologyCharing Cross Hospital Medical SchoolLondonEngland

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