going before another in time or order I'd like to follow up on an antecedent question from another reporter Synonyms previous, anterior, foregoing, former, precedent, preceding, priorRelated Words advance, early, premature; earliest, first, inaugural, initial, maiden, original, pioneer; preexisting; introductory, preliminary; erstwhile, whilomNear ...
Neurotransmitters are formed in a presynaptic neuron and stored in small membrane-bound sacks, called vesicles, inside this neuron. When this neuron is activated, these intracellular vesicles fuse with the cell membrane and release their contents into the synapse, a process called exocytosis.
View Full Document. 1  the postsynaptic membrane and the space between the presynaptic and postsynaptic is the synaptic cleft â¢ Neurotransmitters (chemical substances) are stored in synaptic vesicles in the presynaptic terminal â¢ When AP reaches the presynaptic terminal, the voltage gated Ca2+ opens and Ca+ goes into cell.