The nursing instructor is teaching a group of nursing students about the stages of the sexual response cycle. Which stage is the instructor describing when teaching about the release of the neurotransmitters acetylcholine, dopamine, and nitric oxide?
1. Excitement
2. Plateau
3. Orgasm
4. Resolution
Answer: 1
Explanation: Excitement (arousal) is a vascular phenomenon involving the parasympathetic (cholinergic) nervous system. It results in erection, clitoral engorgement, genital and breast swelling, and lubrication caused by the neurotransmitters acetylcholine, dopamine, and nitric oxide. Plateau, orgasm, and resolution do not involve the release of the neurotransmitters acetylcholine, dopamine, and nitric oxide.
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