Neurotransmitter Release

The following films are from the Multimedia Neuroscience Education Project at Williams College


When the action potential reaches the nerve terminal voltage-dependent Ca2+ channels open and Ca2+ rushes into the neuron terminal


Once in the cell, calcium triggers a phosphorylation that leads to release of the vesicles containing .


Several proteins are involved in the docking of vesicles at the pre-synaptic membrane, and in allowing fusion and exocytosis to occur


recycling the vesicles