Describe the steps of neural communication, from an action potential arriving at an axon terminal to neurotransmitter action stopping

Action potential arrives at the axon terminal of the presymptomatic neuron 

Neurotransmitters(NT) released into the synapse

1. Neurotransmitters: chemicals that serve as messengers 

Neurotransmitters bind receptors on postsynaptic neuron

If there are enough neurotransmitters, postsynaptic neurons fire and action potential

Neurotransmitter action is stopped by enzymes or reuptake