Action Potential

An action potential is a brief electrical signal that travels along the membrane of a neuron or muscle cell. It plays a crucial role in cell communication within the nervous system and in muscle contraction. Here's a brief overview of how it works:

1. Resting Membrane Potential: Neurons maintain a difference in electrical charge between the inside and outside of the cell membrane, known as the resting membrane potential. This is typically around -70 millivolts (mV), with the inside of the cell being negatively charged relative to the outside.

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