Which of the following statements about neurotransmitters is incorrect?

Practice question

Question

Which of the following statements about neurotransmitters is incorrect?

Options

Choose one · Correct answer highlighted

Neurotransmitters facilitate communication between neurons. Acetylcholine is involved in muscle contraction. Neurotransmitters always have an excitatory effect. Correct Serotonin plays a role in mood regulation.

Explanation

Neurotransmitters can be either excitatory (e.g., glutamate) or inhibitory (e.g., GABA), depending on their function.

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