Hunger

A starving rat will lose all interest in food if its ________ is destroyed.

• lateral thalamus

• ventromedial thalamus

• lateral hypothalamus

• ventromedial hypothalamus

Orexin is an appetite hormone secreted by the:

• hypothalamus.

• pancreas.

• stomach.

• liver.

Destruction of the ________ causes an animal to ________.

• lateral hypothalamus; overeat

• lateral hypothalamus; start eating

• ventromedial hypothalamus; overeat

• ventromedial hypothalamus; stop eating

Lindsey is extremely afraid of becoming obese even though she is underweight. She often checks her body in the mirror for any signs of fat and refuses to eat most foods because she insists they are fatty or high in calories. Lindsey most clearly demonstrates symptoms of:

• bulimia nervosa.

• an abnormally high set point.

• anorexia nervosa.

• excess PYY.

The Garcia effect describes

• the increased motivation felt by individuals with high levels of arousal.

• the increased susceptibility to illness experienced in the exhaustion phase of the stress response.

• classical conditioning associating nausea with food or drink

• the effect the hypothalamus has on perceiving hunger.

Increases in insulin will:

• lower blood sugar and trigger hunger.

• raise blood sugar and trigger hunger.

• lower blood sugar and trigger satiety.

• raise blood sugar and trigger satiety.

I am a protein produced by fat cells and monitored by the hypothalamus. When in abundance, I cause the brain to increase metabolism. What am I?

• PYY

• ghrelin

• orexin

• leptin

Bulimia nervosa involves:

• binging.

• purging.

• dramatic weight loss.

• a. and b.

Ali's parents have tried hard to minimize their son's exposure to sweet, fattening foods. If Ali has the occasion to taste sweet foods in the future, which of the following is likely:

• He will have a strong aversion to such foods.

• He will have a neutral reaction to sweet foods.

• He will display a preference for sweet tastes.

• It is impossible to predict Ali's reaction.

No matter how hard she tries to lose weight, Anne finds it difficult to drop below 145 pounds. The weight of 145 pounds is best described as Anne's

• basal metabolic rate.

• body mass index.

• PYY.

• set point.