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Home Q & A Board Biology-Related Homework Help Cell Biology
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Muskaan Muskaan
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12 years ago
Explain the term repolarization?
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#1
12 years ago
First, know the function of a neuron as well as depolarization. When sodium ions have flooded a neuron, the sodium channels close. At this point, the potassium channels open. The potassium ions, which are on the inside of the axon, now rush out. As the potassium ions move out of the cell, the electrical charges reverse again. The inside of the cell becomes more negative than the outside of the cell. Now that section of the neuron has been repolarized. In other words, the charge has returned to it's original polarization.
Biology!
ppk
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#2
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12 years ago
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 positive value. Repolarization results from the movement of positively charged potassium ions out of the cell. Typically the repolarization phase of an action potential results in hyperpolarization, attainment of a membrane potential that is more negative than the resting potential.
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