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relative refractory period |
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relative refractory period [′rel·əd·iv ri′frak·trē ‚pir·ē·əd] (neuroscience) A period of a few milliseconds following the absolute refractory period during which the excitation threshold of neural tissue is raised and a stronger-than-normal stimulus is required to initiate an action potential. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Once a nerve membrane is depolarized, most likely by the first few phases of the pulse,[11,13] additional charges that fall within the absolute or relative refractory period will not affect the excitation. |
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