Which of the following is correct regarding the lateral hypothalamus?
A) Electrical stimulation of the lateral hypothalamus stimulates eating.
B) Reduced eating is noted after injection of lipid into the lateral hypothalamus.
C) Substance P containing neurons from the arcuate nucleus synapse onto orexin neurons within the lateral hypothalamus.
D) The lateral hypothalamus can alter sexual motivation.
E) Obesity is the result of damage to the lateral hypothalamus.

Question

Quizplus · Accepted Answer

Electrical stimulation of the lateral hypothalamus has been shown to stimulate eating behavior. Lesions of the lateral hypothalamus can also lead to reduced food intake.

Answer: B
 Injection of lipid into the lateral hypothalamus has been shown to reduce food intake, indicating a role in regulation of feeding behavior.

Answer: C
 Substance P-containing neurons within the arcuate nucleus of the hypothalamus project to the lateral hypothalamus and synapse onto orexin cells, which play a role in appetite regulation.

Answer: D
 The lateral hypothalamus has been implicated in the regulation of sexual behavior, in addition to its role in feeding behavior.

Answer: E
 Damage to the lateral hypothalamus can actually result in reduced food intake and weight loss, rather than obesity. Obesity is more commonly associated with damage to the ventromedial hypothalamus.

Which of the Following Is Correct Regarding the Lateral Hypothalamus