Animations on Membrane Potentials

[E.S.Prakash]

Especially to Year 1 Students in the Nerve-Muscle Physiology Block; I am sure you will find these animations helpful for understanding fundamental concepts in this Block. 

Animation - Genesis of the Resting Membrane Potential

http://bcs.whfreeman.com/thelifewire/content/chp44/4402001.html

An Excellent Animation describing the Resting Membrane Potential followed by genesis of a Nerve Impulse (Action Potential - a wave of depolarization that moves across the cell membrane transiently reversing the RMP) - http://tinyurl.com/ooeajs; the animation also depicts the role of Na-K ATPase in restoring the concentration gradients for K and Na. 

This animation at http://www.biology4all.com/resources_library/source/63.swf depicts the ion fluxes during the phases of the action potential. 

Animation - Action Potential in Neurons

http://bcs.whfreeman.com/thelifewire/content/chp44/4402s.swf

Ion fluxes during the two major phases of an action potential in a nerve fibre

http://www.blackwellpublishing.com/matthews/channel.html

Action Potential Propagation in Myelinated Vs Unmyelinated Neurons

http://www.blackwellpublishing.com/matthews/actionp.html

More Animations on Membrane Potentials

http://www2.yvcc.edu/Biology/109Modules/Modules/RMP/RMP.htm (there are multiple animations on this page; please read the accompanying text and follow the instructions there to run the animations)

All the best

Prakash