Action Potential

When a Pyramidal Neuron is stimulated by a neurotransmitter, a chemical reaction occurs when the cell membrane allows sodium ions to flow out of the cell, and potassium ions to flow into the cell. An Action Potential lasts for about 1 millisecond, or 1/1000 of a second.

Shown left is a slow motion demonstration of an Action Potential taking place within a Pyramidal Neuron Cell.