Can anyone explain the role of the neurotransmitters in the synapse?

Our nervous system runs on chemical synapses! that means we need chemical to transfer information from one neuron to another!

so when the signal reaches the synaptic knob of one neuron, it stimulates the neurotransmitters containing vacuoles to release the neurotransmitters!

the neurotransmitters may be dopamine, acetylcholine etc and after reaching the dendrites of other neuron, it stimulates signal in the other neuron and thus a signal travel from one part of body to other!