Repolarization

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4 Terms

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What is repolarization?

the regaining of charges, opposite of depolarization

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What is in charge of the repolarization of the cell membrane?

voltage gated K+ channels

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Step 1

  • voltage gated K+ channels open, K+ rushes into cell

    • bc electrochemical gradient

  • increases negativity on inside, eventually returning to -70 mV

    • inside to more negative state

    • outside to more positive state

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Step 2

  • continues for a while, little Na+ and K+ required for depolarization and repolarization of membrane

  • Na+/K+ pump always working, can return ions to og concentrations inside and outside of cell