Answer :
Soon after a car accident, Sally was rushed to the hospital. The doctors discovered that Sally's ventromedial hypothalamus had suffered some damage as a result of the accident. In the context of the biology of hunger, the doctor should expect that Sally will gain weight rapidly.
The ventromedial nucleus of the hypothalamus (VMH) is a complex brain structure involved in many neuroendocrine functions such as glucose regulation, thermogenesis, and appetitive, social, and sexual behavior.
When the ventromedial hypothalamus is damaged, a person does not feel full after eating. Obesity is caused by a lack of satiety, which leads to excessive hunger, overeating, and weight gain.
The satiety center is the ventromedial nuclei, and when stimulated, it produces the sensation of fullness. The lateral hypothalamic area, on the other hand, is the feeding center, and when stimulated, it produces the sensation of hunger. Electrical stimulation of the ventromedial hypothalamus improves fat utilization and metabolic rate, which occur before and after inhibition of feeding behavior.
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