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Japanese

Conduction velocity and safety factor of myelinated and unmyelinated nerve fibres K. Yamagiwa 1 1Department of Physiology, Tokyo Medical and Dental University pp.203-207
Published Date 1959/8/15
DOI https://doi.org/10.11477/mf.2425906086
  • Abstract
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 Based on the author's theory of initiation of impulse, examinations were made on the conduction velocity and safety factor of myelinated and unmyelinated nerve fibres. Chief results obtained are: 1) the velocity v of an unmyelinated fibre is a function of the membrane resistance γm and attains maximum at a certain γm which makes f (safety factor of exitation)=e2)≒8; 2) v is small but F (safety factor of conduction)≒f in unmyelinated, while v is large but F<f in myelinated fibres. In other words, v is enhanced and F is reduced, if an unmyelinated fibre is myelinated; and 3) v of a myelinated fibre attains maximum at a certain internodal distance.


Copyright © 1959, THE ICHIRO KANEHARA FOUNDATION. All rights reserved.

基本情報

電子版ISSN 1883-5503 印刷版ISSN 0370-9531 金原一郎記念医学医療振興財団

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