The eating behavior of the hyperphagic rat suggests there is
A)anorexia in rats.
B)satiety in rats.
C)an "off" center in the ventromedial nucleus of the hypothalamus.
D)an "off" center in the lateral hypothalamus.

Question

Quizplus · Accepted Answer

The hyperphagic rat eats excessively due to a dysfunction in the ventromedial nucleus of the hypothalamus, which is responsible for the "off" center of satiety. Thus, the rat lacks satiety signals resulting in overeating. Anorexia is a disorder of low appetite, and it does not apply in this situation. The lateral hypothalamus is responsible for the "on" center of hunger, so it is not involved in this situation.

The Eating Behavior of the Hyperphagic Rat Suggests There Is