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[If the trailer does not appear above, it is available on YouTube at http://www.youtube.com/watch?v=uZ7JKmcLTsI

"Short video on how neurons work. This animation details the ion movement across the cell membranes."

"3d animation of a neural network with zoom into a synapse and release of a neurotransmitter."

"3D animation of a neuron and an action potential. Ion channels in the soma open and allow an increase in the intracellular voltage. Once the voltage reaches a threshold, an action potential is generated, which travels the length of the axon and passes into the terminals. The voltage in the terminals stimulate the release of neurotransmitters which cross the synapse, opening ion channels in dendrites of the post-synaptic neuron and increasing the voltage of the second neuron."