Which neurotransmitter communicates between nerves and muscles?
A) Acetylcholine
B) Dopamine
C) Gamma-aminobutyric acid (GABA)
D) Serotonin
A
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Acetylcholine, which communicates between nerves and muscles, is also important as the preganglionic neurotransmitter throughout the autonomic nervous system and as the postganglionic neurotransmitter in the parasympathetic nervous system and in several pathways in the brain. Dopamine is involved in the coordination of impulses and responses, both motor and intellectual. GABA inhibits nerve activity. Serotonin is important in arousal and sleep.
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