[拉伸对离体蛙肌纤维静息电位的影响]
[Effect of stretching on the resting potential of isolated frog muscle fibers].
作者信息
Kovaleva T A
出版信息
Tsitologiia. 1975 Sep;17(9):1037-41.
PMID:1166518
Abstract
The resting potentials of single muscle fibers of the frog increased under a 30% stretching over the rest length (sarcomere length being about 3.2 microns). If the resting potential was increased during the resting state, no augmentation of the resting potential occurs under stretching. The stretching of fibres by 60% over the rest length (sacomere length about 3.9 microns) was accompanied, as a rule, by depolarization.
摘要
青蛙单根肌纤维的静息电位在超过静息长度30%（肌节长度约为3.2微米）的拉伸下会升高。如果在静息状态下静息电位已经升高，那么在拉伸时静息电位不会进一步增大。通常情况下，当纤维在超过静息长度60%（肌节长度约为3.9微米）的拉伸时，会伴随去极化现象。
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