28. Following a stroke, Hyun is experiencing a problem with continuous overeating and a lack of appetite control. Which part of Hyun’s brain was most likely damaged by the stroke?
Answer: D
Hyun most likely damaged the hypothalamus in his brain due to the stroke.
The hypothalamus is crucial for regulating appetite and energy balance. Damage to this area can lead to overeating and a lack of appetite control, which aligns with Hyun's symptoms.
A) Pons
The pons is involved in regulating sleep and arousal but does not play a significant role in appetite control. Damage to the pons would not typically result in overeating or lack of appetite control, making this option incorrect.
B) Thalamus
The thalamus acts as a relay station for sensory and motor signals but is not directly involved in the regulation of appetite. Therefore, damage to the thalamus would not explain Hyun's overeating and lack of appetite control.
C) Amygdala
While the amygdala is associated with emotions and can influence eating behaviors, it is not primarily responsible for appetite regulation. Damage to the amygdala might affect emotional eating but would not directly lead to continuous overeating as described.
D) Hypothalamus
The hypothalamus plays a vital role in controlling hunger and energy expenditure. Damage to this region can disrupt normal appetite regulation, leading to symptoms like overeating, which is what Hyun is experiencing.
E) Hippocampus
The hippocampus is primarily involved in memory formation and spatial navigation. It does not have a direct role in appetite control, making it an unlikely candidate for the symptoms presented by Hyun.
Conclusion
The hypothalamus is definitively the correct answer as it is the brain region responsible for regulating appetite and energy balance. The other options fail to account for the specific symptoms of continuous overeating and lack of appetite control, which are directly linked to hypothalamic function.