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Glossary of Physiology Terms -
All-or-nothing

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All-or-nothing

Definition:
All-or-nothing is usually used when describing the action potential. It refers to the well-known observation that an action potential always occurs in its full size (i.e., full magnitude of voltage change).

Many physiologists use all-or-nothing and all-or-none interchangeably.

See also:
Important Features of the Neuronal Action Potential




Posted: Sunday, April 14, 2013
Last updated: Wednesday, March 12, 2025
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