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Biophysical Journal 36: 797-802 (1981)
© 1981 the Biophysical Society

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Computer simulation of the effect of the nodal gap resistance on ionic current measurements in the Ranvier node membrane.

C Zaciu, M Tripsa and V Vasilescu

ABSTRACT

Results are presented of a computer simulation of the effect of the irreducible resistance introduced by the nodal gap, in series with the impedance of the axon membrane. A clamp potential is applied to a structure modeled as an electric circuit composed of a resistance in series with the membrane impedance, and modified nerve equations describing membrane currents are solved to predict the effect of nodal series resistance on these currents. These studies reveal changes in the absolute values and kinetics of the ionic currents (errors greater than 10-20%) for selected values of series resistance.






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Copyright © 1981 by the Biophysical Society.