Read complete answer here. In this way, what happens during cardiac cell repolarization?
After a delay (known as the absolute refractory period; see below), termination of the action potential then occurs, as potassium channels open, allowing K+ to leave the cell and causing the membrane potential to return to negative, this is known as repolarization.
Also, what is the difference between depolarization and repolarization? The main difference between depolarization and repolarization is that the depolarization is the loss of resting membrane potential due to the alteration of the polarization of cell membrane whereas repolarization is the restoration of the resting membrane potential after each depolarization event.
Similarly, you may ask, what is meant by depolarization and repolarization of cell?
Action potential in a neuron, showing depolarization, in which the cell's internal charge becomes less negative (more positive), and repolarization, where the internal charge returns to a more negative value.
Why is repolarization needed?
Repolarization Process This means that the inside of the cell needs to be negative, while the outside needs to be positive. A cell restores this state, or repolarizes itself, by turning on a protein pump in its membrane. For every three sodium ions it pumps out of a cell, it pumps in two potassium ones.
