Presynaptic Neuron: The neuron that sends signals across the synapse to another neuron or target cell. It acts as the pilot who controls when and where the plane takes off.
Postsynaptic Neuron:The neuron or target cell that receives signals from the presynaptic neuron across the synapse. It's like the passengers waiting at their destination for their packages to arrive.
Exocytosis: The process by which synaptic vesicles release neurotransmitters into the synapse. It's like opening cargo doors and unloading packages from a plane onto conveyor belts for distribution.