Small membrane-bound sacs inside neurons that store various neurotransmitters that are released at the synapse.
Exocytosis: The process where vesicles fuse with the plasma membrane and release their contents into the extracellular space.
Endocytosis: The process where cells absorb material from outside their cell membranes via engulfing with their cell membrane.
The process where neurotransmitters stored in vesicles are released into synaptic clefts to transmit information across synapses.