横纹肌纤维动作电流分析
AN ANALYSIS OF THE STRIATED MUSCLE FIBER ACTION CURRENT.
作者信息
JENERICK H
出版信息
Biophys J. 1964 Mar;4(2):77-91. doi: 10.1016/s0006-3495(64)86770-9.
Abstract
A method is presented for determining the magnitude of the ionic current associated with the propagated spike potential. Parameters of the action current are then compared to various aspects of the response as recorded in a phase plane. The findings also include evidence for (a) Na(+) ion as the major inward current carrier, (b) a fairly constant membrane conductance during the terminal phase ( approximately 1 msec.) of the spike potential, and (c) the influence of Ca(++) ion concentration on the action current.
摘要
本文提出了一种用于确定与传播的锋电位相关的离子电流大小的方法。然后将动作电流的参数与相平面中记录的反应的各个方面进行比较。研究结果还包括以下方面的证据：(a) Na(+)离子是主要的内向电流载体；(b) 在锋电位的终末阶段（约1毫秒）膜电导相当恒定；(c) Ca(++)离子浓度对动作电流的影响。
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