Open Question
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.
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.
Verified step by step guidance1
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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