This tutorial is a very basic review of some basic physics and chemistry that plays a role in the generation and sustaining of the action potential.

Review of Physical Factors Involved in the Action Potential. Uses animations. By John H. Krantz, Ph.D., Hanover College

The action potential provides a means by which information can be transmitted relatively quickly over long distances in the nervous system, and the mechanism by which it is produced is similar in...

Sodium channel opens ... h gate closes ... Channel Gating during an action potential

An action potential is initiated by a stimulus above a certain intensity or threshold. Not all stimuli initiate an action potential.

Lights, Camera, Action Potential ... Neuroscientists use other words, such as a "spike" or an "impulse" for the action potential. The action potential is an explosion of electrical activity that

Jump to Section: Resting Potential | Action Potential | Conduction | Speed ... 2. The Action Potential (back to top)

Action Potential: a) Resting membrane potential (RMP) at -70mV. Na+ on outside and K+ on inside of cell;

Another blogging hiatus on the old "Action Potential" blog. Sorry about that. ... A great discussion over at Nature Network inspired me to initiate a similar conversation here at Action Potential.

The strength of the action potential is an intrinsic property of the cell. So long as they can reach the threshold of the cell, strong stimuli produce no stronger action potentials than weak ones.