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As the aroma of freshly brewed coffee drifted by dozing Henry's nose, his mouth started to water and his stomach began to rumble. Explain his reactions in terms of ANS activity.
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14. The Autonomic Nervous System
Control of the ANS
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Which of the following brain regions is NOT involved in maintaining routine, homeostatic activity?
A
The hypothalamus.
B
The reticular formation.
C
The brainstem.
D
The prefrontal cortex.
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Understand the role of the hypothalamus: The hypothalamus is crucial for maintaining homeostasis by regulating body temperature, hunger, thirst, and circadian rhythms.
Examine the function of the reticular formation: This network of neurons in the brainstem is involved in regulating wakefulness and sleep-wake transitions, contributing to homeostatic balance.
Consider the brainstem's role: The brainstem controls basic life functions such as breathing, heart rate, and blood pressure, all of which are essential for homeostasis.
Identify the function of the prefrontal cortex: The prefrontal cortex is primarily involved in complex behaviors, decision-making, and personality expression, rather than routine homeostatic activities.
Conclude that the prefrontal cortex is not directly involved in maintaining routine homeostatic activities, unlike the other brain regions mentioned.
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