An action potential invade Transmitter is snthesized Depolarization and then stored in vesicle terminal caus icles t fuse with presynaptic membran 10 Retrieval od vesicula membrane from plasm membrane Into synapte ckft vi Acns molecules ontsynaptK current cates自 Opening or closing ot]|m可m excitatory or inhabitory tie channel postsynaptic potential that hanges the excitability af