File:Rheobase chronaxie.svg

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Summary[edit]

Summary
Description	Chronaxy is the shortest duration of an electrical stimulus where the threshold amplitude is twice the rheobase - the minimum required for eliciting an ACTION POTENTIAL at any time period. It is a measure of the excitability of nerve or muscle tissue, and is characteristic of types and/or condition of the nerve or muscle cells in the tissue. Rheobase is the minimal current amplitude of indefinite duration (practically, a few hundred milliseconds) that results in the depolarization threshold of the cell membranes being reached (i.e. an action potential or the contraction of a muscle).
Source	Wikimedia Commons file page
Author	Sav vas
Permission	See original Commons license details.

License: CC0

License page: CC0

Original attribution and file history: Wikimedia Commons

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	03:37, 5 June 2026		734 × 363 (8 KB)	Maintenance script (talk \| contribs)	== Summary == Importing file

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