The patient tells the nurse that she is interested in the human brain, and questions which parts of the brain control anxiety and insomnia. What is the best reply by the nurse?
1. "The limbic system and reticular activating system control anxiety and insomnia."
2. "The frontal lobes and limbic system control anxiety and insomnia."
3. "The thalamus and reticular activating system control anxiety and insomnia."
4. "The limbic system and hypothalamus control anxiety and insomnia."
Correct Answer: 1
Rationale: Neural systems associated with anxiety and restlessness includes the limbic system and the reticular activating system. The reticular activating system is responsible for sleeping and wakefulness and performs an alerting function for the entire cerebral cortex. The limbic system and the reticular activating system, not the hypothalamus, are responsible for anxiety and sleep. The limbic system and the reticular activating system, not the frontal lobes, are responsible for anxiety and sleep. The limbic system and the reticular activating system, not the thalamus, are responsible for anxiety and sleep.
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