Repolarization

Return to baseline electrochemical state of either a nerve or muscle tissue following depolarization. Involves a shift or sodium, potassium, and calcium ions.


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. During repolarization ions diffuse back to restore the charge and the nerve becomes ready to transmit further impulses.


Restoration of the polarized state at a cell membrane (negative inside in relation to the outside) following depolarization as in muscle or nerve fibers.


 


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