Answer:
False
Explanation:
The brain is part of the central nervous system. Neurons are the structures that serve as a basic unit of this system including the brain. Neurotransmitters are the signaling molecules that are secreted by neurons to deliver the nerve impulses to the other neurons. These Neurotransmitters have receptors on the target neurons and produce either excitatory or the inhibitory effects on the target neurons. Accordingly, the target neuron produces the response. Acetylcholine and norepinephrine are some examples of these chemicals.