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AAT Bioquest

Where are neurotransmitters stored?

Posted May 3, 2023


Answer

Neurotransmitters are stored within small, membrane-bound sacs known as synaptic vesicles. The synaptic vesicles are concentrated in high density in the ends of presynaptic neurons or the axon terminals. 

The neurotransmitters are released into the synaptic cleft of the synapse when the thin-walled synaptic vesicle fuses with the cell membrane in a process known as exocytosis.

Additional resources

LC-MS/MS-based quantification of tryptophan metabolites and neurotransmitters in the serum and brain of mice

Cell Signaling

Amplite® Colorimetric Acetylcholinesterase Assay Kit