Answer:
Inhibitory Neurotransmitter
Step-by-step explanation:
Neurotransmitters are chemicals that act as chemical messengers and transmit a signal across the neuromuscular junction i.e., from one neuron to another.
There are two types of actions that a neurotransmitter performs
Excitatory
When the ion flow i.e., the flow of electricity in the trans-membrane increases
Inhibitory
When the ion flow in the trans-membrane decreases.