- The process whereby the membrane, cell, or fiber, after depolarization, is polarized again, with positive charges on the outer and negative charges on the inner surface.
* * *re·po·lar·iza·tion also Brit re·po·lar·isa·tion .rē-pō-lə-rə-'zā-shən n restoration of the difference in charge between the inside and outside of the plasma membrane of a muscle fiber or cell following depolarizationre·po·lar·ize also Brit re·po·lar·ise (')rē-'pō-lə-.rīz vb, -ized also Brit -ised; -iz·ing also Brit -is·ing
* * *n.the process in which the membrane of a nerve cell returns to its normal electrically charged state after a nerve impulse has passed. During the passage of a nerve impulse a temporary change in the molecular structure of the membrane allows a surge of ions across the membrane (see action potential). During repolarization ions diffuse back to restore the charge and the nerve becomes ready to transmit further impulses. See refractory period.
* * *re·po·lar·iza·tion (re-po″lər-ĭ-zaґshən) the reestablishment of polarity, especially the return of cell membrane potential to resting potential after depolarization. See also potassium channel and sodium channel, under channel.
Medical dictionary. 2011.
Look at other dictionaries:
Repolarization — In neuroscience, repolarization refers to the change in membrane potential that returns the membrane potential to a negative value after the depolarization phase of an action potential has just previously changed the membrane potential to a… … Wikipedia
repolarization — n. the process in which the membrane of a nerve cell returns to its normal electrically charged state after a nerve impulse has passed. During the passage of a nerve impulse a temporary change in the molecular structure of the membrane allows a… … The new mediacal dictionary
repolarization — noun Date: 1922 restoration of the difference in charge between the inside and outside of the cell membrane following depolarization • repolarize verb … New Collegiate Dictionary
repolarization — n. * * * … Universalium
repolarization — noun The act of repolarizing … Wiktionary
repolarization — re·polarization … English syllables
repolarization — re po•lar•i•za′tion n … From formal English to slang
repolarization — … Useful english dictionary
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