Source: wikibot/spike-potential
= Spike potential
{wiki=Spike_potential}
Spike potential refers to the rapid rise and fall in membrane potential that occurs during the action potential of a neuron or muscle cell. It is characterized by a sudden depolarization followed by repolarization, which allows for the transmission of electrical signals along nerves and muscle fibers. In neurons, the spike potential is initiated when a membrane's resting potential reaches a threshold level due to incoming signals.