A nurse practitioner (NP) is caring for a patient who report…

A nurse practitioner (NP) is caring for a patient who reports difficulty sleeping after traveling across multiple time zones. The NP explains that the body’s internal clock is regulated by a specific brain structure that responds to light and dark signals. Which of the following best describes this structure and its function?

A patient presents with elevated heart rate, dilated pupils,…

A patient presents with elevated heart rate, dilated pupils, and dry mouth during a stressful event. Later, they report fatigue and increased digestive activity. Which of the following best explains the roles of the autonomic nervous system branches in this response?