How do our brains produce electricity for nervous impulses?
In: Biology
So electricity is simply the flow of charged particles (ions). Within our cells we have many ions and the movement of those ions is controlled by channels. Now the amount of ions within cells is different than the amount outside of the cells and this creates a gradient.
For nerve impulses the important ions are sodium and potassium. Nerve cells maintain a negative charge compared to outside when at rest which means they have less sodium and potassium than the outside. When a nervous impulse happens one of the channels on the outside of the cell is opened and sodium and potassium rush into the cell.
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