Module 4-2 Action Potential, Synapses
Channel: Mike Jaeggli
Date: 2015-02-10

Module 4-2 Action Potential, Synapses.

Discussion of the large neuron active signaling mechanism where an electrical stimulus exceeds a certain threshold strength, triggers an explosion of electrical activity that is rapidly propagated along the cell membrane, and is sustained by automatic amplification along the way.

This traveling wave of electrical excitation is an action potential (AP), or nerve impulse, and can carry the message without attenuation faster than 100 meters per second.