Messung des Calcium-Einflusses auf die Strom-Spannungsbeziehung der erregbaren Membran am Ranvier-Knoten

Translated title of the contribution: The effect of calcium on the current-voltage-relation of the excitable membrane at the Ranvier-node

Günter Albrecht-Bühler*

*Corresponding author for this work

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

An increase of the extracellular calcium-concentration shifts the extreme current values of the current-voltage-relation of a Ranvier-node towards depolarization. This influence can be described by the change of one single parameter V of an equation representing the current-voltage-characteristic. V referres to the potential at which the s-shaped step-function of resistance change assumes the arithmetical mean of its limiting values. The step-function compares to the variable of potassium conductance n4(V). An increase of [Ca··]a shifts V towards depolarizing potentials. V is also found to depend on [K·]a. The influence of calcium on membrane potential is interpreted as a consequence of the observed shift of V.

Translated title of the contributionThe effect of calcium on the current-voltage-relation of the excitable membrane at the Ranvier-node
Original languageGerman
Pages (from-to)23-34
Number of pages12
JournalPflügers Archiv für die Gesamte Physiologie des Menschen und der Tiere
Volume300
Issue number1
DOIs
StatePublished - Mar 1 1968

Keywords

  • Calcium
  • Electro-Physiology
  • Ranvier-Node
  • Stationary Current-Voltage Relation

ASJC Scopus subject areas

  • Physiology
  • Clinical Biochemistry
  • Physiology (medical)

Fingerprint Dive into the research topics of 'The effect of calcium on the current-voltage-relation of the excitable membrane at the Ranvier-node'. Together they form a unique fingerprint.

  • Cite this