A NOTE ON PACEMAKER CURRENT IN PURKINJE FIBERS

被引:53
作者
PEPER, K
TRAUTWEIN, W
机构
[1] II. Physiologisches Institut der Universität Heidelberg, Heidelberg, 6900
来源
PFLUGERS ARCHIV-EUROPEAN JOURNAL OF PHYSIOLOGY | 1969年 / 309卷 / 04期
关键词
Cardiac Muscle; Pacemaker; Potassium Ions; Voltage Clamp Analysis;
D O I
10.1007/BF00587758
中图分类号
Q4 [生理学];
学科分类号
071003 ;
摘要
At the end of an action potential of a Purkinje fiber the membrane potential was clamped for several 100 msec to different potential levels and the resulting pacemaker current was recorded. The reversal potential of the pacemaker current was determined at different concentrations of extracellular potassium ions and was shown to follow the Nernst-equation. Almost the same reversal potentials were found when the current-voltage relation was recorded by means of a ramp function. © 1969 Springer-Verlag.
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页码:356 / +
页数:1
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