When an action potential reaches the axon terminal, a quick burst of neurotransmitter is released into the synaptic cleft.

Question

Quizplus · Accepted Answer

When an action potential reaches the axon terminal, it triggers the opening of voltage-gated calcium channels, allowing calcium ions to enter the terminal. This influx of calcium ions causes synaptic vesicles containing neurotransmitter to fuse with the presynaptic membrane and release their contents into the synaptic cleft in a process known as exocytosis.

When an Action Potential Reaches the Axon Terminal, a Quick