Thanks a lot. You are one of the best biology teachers out there.
@yoongitrash2699 Жыл бұрын
At the depolarisation stage, why would the inside of the axon be positive if the Na ions are equalized? Wouldn't that make it neutral?
@jackieshukin6240 Жыл бұрын
Yes, as the sodium ions rush into the cell, they will eventually reach equilibrium. However, keep in mind that during this time, the potassium gates are closed, meaning that there is still a high concentration of potassium ions trapped inside the cell. So, the inside of the cell becomes positive relative to the outside until action potential is reached.