Abstract
The cell of the sinoatrial (SA) node have a resting potential of — 30 to — 50 mV. This is a relatively low value compared to working myocardium. The response of the cells of the SA node to change in the extracellular potassium-concentration was small, viz, below 5 mM. Changes of the [K]o only have a slight effect on the membrane potential whereas an increase of[K]o from 25 to 50mM causes a change of 21.5 mV per tenfold change in[K]o (Noma and Irisawa, 1975).
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© 1978 Martinus Nijhoff Medical Division
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Seyama, I. (1978). Which Ions are Important for the Maintenance of the Resting Membrane Potential of the Cells of the Sinotrial Node of the Rabbit?. In: Bonke, F.I.M. (eds) The Sinus Node. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-9715-8_29
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DOI: https://doi.org/10.1007/978-94-009-9715-8_29
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-009-9717-2
Online ISBN: 978-94-009-9715-8
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