Answer: TO RELEASE SYNAPTIC VESICLES FROM THE AXON TERMINAL.
Explanation: SYNAPTIC VESICLES are in the form of sack,which helps in the storage of Neurotransmitters. Neurotransmitters are released from the SYNAPSES through the Calcium channels which highly depend on Voltage.
Vesicles are essential for transmitting nerve impulses from one neuron to another Vesicles are constantly recreated by the cell as some older ones age.
