蛙肌纤维中一连串冲动之后的后电位。
THE AFTER-POTENTIAL THAT FOLLOWS TRAINS OF IMPULSES IN FROG MUSCLE FIBERS.
作者信息
FREYGANG W H, GOLDSTEIN D A, HELLAM D C
出版信息
J Gen Physiol. 1964 May;47(5):929-52. doi: 10.1085/jgp.47.5.929.
Abstract
Intracellular recordings of the negative after-potential that follows a train of impulses in frog muscle are described. It is postulated that the cause of this after-potential is an accumulation of potassium, during the train, in an intermediary space that is located between the major portion of the sarcoplasm and the external fluid. The decline of the after-potential is then produced by the exchange of potassium from the intermediary space with sodium from the external fluid.
摘要
本文描述了对青蛙肌肉中一串冲动之后的负后电位的细胞内记录。据推测，该后电位的起因是在一串冲动期间，钾在位于肌浆主要部分与外部液体之间的中间空间中积累。而后电位的下降则是由中间空间中的钾与外部液体中的钠进行交换所导致的。
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