What are the steps of synaptic transmission?
1. electrical impulse arrives at the synaptic bulb
2. causes vesicles to fuse with the membrane of the presynaptic neuron
3. neurotransmitter is released into synaptic gap
4. diffuses across the synaptic gap
5. binds to specific receptors on the postsynaptic neuron
6. triggers an electrical impulse in postsynaptic neuron
7. neurotransmitter returns to vesicles of presynaptic neuron in the process of reuptake