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ID 18388
Eprint ID
18388
FullText URL
Thumnail 74_499.pdf 9.05 MB
Title Alternative
Electrophysiological and Histological Studies on the Human Skeletal Muscle Part Ⅲ Conduction Velocity of Isolated Human Skeletal Muscle Fibers
Author
Shinozaki, Tamotsu
Abstract
The conduction velocity of action potential of isolated human skeletal muscle was examined in oxygenated Tyrode's solution. 1. The velocity is distributed mainly between 3 and 4 m/sec, being neither more than 4.5 m/sec, nor less than 2.3 m/sec. 2. In the pectoralis major muscle and the rectus abdominis the conduction velocity does not distribute uniformly, but has two peaks. One peak is between 3 and 3.6 m/sec, and the other is between 3.6 and 4.2 m/sec. 3. When current I is applied intracellulary across the fiber membrane, the membrane potential is changed as much as V in terminal value. Then muscle fibers can be divided into two groups by V/I value and the conduction velocity. In one group V/I is in inverse proportion to the 3 power of the velocity. This means, if resistance of membrane and capacitance of membrane are constant in a group, the conduction velocity is in the proportion to the root of the fiber diameter, which is rational to the cable theory. The difference of two groups may depend upon the difference of capacitance of membrane.
Published Date
1962-07-30
Publication Title
岡山医学会雑誌
Publication Title Alternative
Journal of Okayama Medical Association
Volume
volume74
Issue
issue4-7
Publisher
岡山医学会
Publisher Alternative
Okayama Medical Association
Start Page
499
End Page
507
ISSN
0030-1558
NCID
AN00032489
Content Type
Journal Article
Official Url
https://www.jstage.jst.go.jp/article/joma1947/74/4-7/74_4-7_499/_article/-char/ja/
Related Url
http://www.okayama-u.ac.jp/user/oma/
language
日本語
Copyright Holders
岡山医学会
File Version
publisher
Refereed
True
Eprints Journal Name
joma