Use these online animations to help you study and understand how a nerve impulse travels down the axon, how resting membrane potential is maintained, and the mechanism of neurotransmitter release in the synapse.
Explore this website to see animations for all of these processes and mechanisms in the neuron: http://icarus.med.utoronto.ca/neurons/index.swf
A virtual neuron - see how it behaves here: lhttp://www.childrenshospital.org/research/Site2029/mainpageS2029P23sublevel51.html
See how resting membrane potential is maintained here: http://www.sumanasinc.com/webcontent/animations/content/electricalsignaling.html
An animation of an action potential here: http://outreach.mcb.harvard.edu/animations/actionpotential.swf
Another animation for nerve impulse/action potential here: http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter14/animation__the_nerve_impulse.html
This one shows the changes in the ion channels during an action potential. Make sure you know where sodium and potassium move during depolarization and repolarization. You can check it out here: http://www.blackwellpublishing.com/matthews/channel.html
More animations from the same organization that did the last animation. Check out "Propagation of an action potential" and "Synaptic vesicle fusion and neurotransmitter release" here: http://www.blackwellpublishing.com/matthews/animate.html