Question 1

Under what condition does orexin motivate animals to eat?

Accepted Answer

A)  right after a meal 
B)  when approaching starvation 
C)  in the mornings 
D)  when insulin levels are high 
A)  right after a meal 
B)  when approaching starvation 
C)  in the mornings 
D)  when insulin levels are high

Question 2

After damage to the ventromedial hypothalamus, an animal will most likely:

Accepted Answer

A)  increase its activity level. 
B)  eat much more at any given meal. 
C)  overeat when presented with a sweetened diet. 
D)  only undereat when presented with a very sweet food. 
A)  increase its activity level. 
B)  eat much more at any given meal. 
C)  overeat when presented with a sweetened diet. 
D)  only undereat when presented with a very sweet food.

Question 3

Which of the following is NOT true about the hormone CCK (cholecystokinin)?

Accepted Answer

A)  The duodenum releases CCK when food distends the duodenum. 
B)  CCK tightens the sphincter muscle between the stomach and duodenum. 
C)  CCK crosses the blood-brain barrier and inhibits cells in the hypothalamus. 
D)  CCK stimulates the vagus nerve and causes cells in the hypothalamus to release CCK as a neurotransmitter. 
A)  The duodenum releases CCK when food distends the duodenum. 
B)  CCK tightens the sphincter muscle between the stomach and duodenum. 
C)  CCK crosses the blood-brain barrier and inhibits cells in the hypothalamus. 
D)  CCK stimulates the vagus nerve and causes cells in the hypothalamus to release CCK as a neurotransmitter.

Question 4

An increase in the size of meals is most likely to occur following damage to which area of the hypothalamus?

Accepted Answer

A)  Paraventricular 
B)  Lateral 
C)  Preoptic 
D)  Ventromedial 
A)  Paraventricular 
B)  Lateral 
C)  Preoptic 
D)  Ventromedial

Question 5

The lateral preoptic area and surrounding parts of the hypothalamus control:

Accepted Answer

A)  CCK levels. 
B)  hunger. 
C)  drinking. 
D)  vasopressin levels. 
A)  CCK levels. 
B)  hunger. 
C)  drinking. 
D)  vasopressin levels.

Question 6

Which of the following behaviors would be most affected by damage to the cell bodies of the lateral hypothalamus?

Accepted Answer

A)  feeding behavior 
B)  sexual behavior 
C)  osmotic thirst 
D)  memory 
A)  feeding behavior 
B)  sexual behavior 
C)  osmotic thirst 
D)  memory

Question 7

Orexin inhibits appetite.

Accepted Answer

A) True 
 B)False

Question 8

Fructose, used in corn syrup as a sweetener, may lead to increased obesity by:

Accepted Answer

A)  failing to trigger satiety. 
B)  having more calories than other sugars. 
C)  slowing fat digestion. 
D)  enhancing PVN activity. 
A)  failing to trigger satiety. 
B)  having more calories than other sugars. 
C)  slowing fat digestion. 
D)  enhancing PVN activity.

Question 9

The blood's glucose level ordinarily remains relatively constant because of the activity of:

Accepted Answer

A)  CCK. 
B)  the liver. 
C)  the thyroid gland. 
D)  the gall bladder. 
A)  CCK. 
B)  the liver. 
C)  the thyroid gland. 
D)  the gall bladder.

Question 10

The two types of thirst are ____ and ____.

Accepted Answer

A)  osmotic thirst; hypervolemic thirst 
B)  osmotic thirst; hypovolemic thirst 
C)  hypovolemic thirst; set point thirst 
D)  vasopressin thirst; osmotic thirst 
A)  osmotic thirst; hypervolemic thirst 
B)  osmotic thirst; hypovolemic thirst 
C)  hypovolemic thirst; set point thirst 
D)  vasopressin thirst; osmotic thirst

Question 11

Severe blood loss will result in a preference for:

Accepted Answer

A)  pure water. 
B)  slightly salty water. 
C)  highly concentrated salt solutions. 
D)  carbohydrates. 
A)  pure water. 
B)  slightly salty water. 
C)  highly concentrated salt solutions. 
D)  carbohydrates.

Question 12

When bacteria, viruses, fungi, or other intruders invade the body, it mobilizes ____ to attack them.

Accepted Answer

A)  leptin 
B)  cholecystokinin 
C)  cytokines 
D)  leukocytes 
A)  leptin 
B)  cholecystokinin 
C)  cytokines 
D)  leukocytes

Question 13

Through what mechanism does insulin affect appetite?

Accepted Answer

A)  It enables stored nutrients to enter the blood stream. 
B)  It enables glucose in the blood stream to enter the cells. 
C)  It converts other nutrients into glucose. 
D)  It converts glucose into other nutrients. 
A)  It enables stored nutrients to enter the blood stream. 
B)  It enables glucose in the blood stream to enter the cells. 
C)  It converts other nutrients into glucose. 
D)  It converts glucose into other nutrients.

Question 14

When food distends the duodenum, the duodenum releases which hormone?

Accepted Answer

A)  CCK 
B)  Aldosterone 
C)  angiotensin II 
D)  Prolactin 
A)  CCK 
B)  Aldosterone 
C)  angiotensin II 
D)  Prolactin

Question 15

Describe how bulimia nervosa resembles drug addiction.

Accepted Answer

The answer of Describe how bulimia nervosa resembles drug addiction....

Question 16

After a lesion to the lateral preoptic area, a rat would react to an increase in sodium levels by:

Accepted Answer

A)  drinking less and excreting highly concentrated urine. 
B)  drinking more and excreting a great deal of dilute urine. 
C)  increasing its activity level without changing the amount it drinks. 
D)  sweating profusely, but not drinking much. 
A)  drinking less and excreting highly concentrated urine. 
B)  drinking more and excreting a great deal of dilute urine. 
C)  increasing its activity level without changing the amount it drinks. 
D)  sweating profusely, but not drinking much.

Question 17

A person most likely to shiver when the:

Accepted Answer

A)  skin is cold, but the preoptic area is at normal temperature. 
B)  temperature difference between the skin and the preoptic area is large. 
C)  skin and the preoptic area are both hot. 
D)  skin and the preoptic area are both cold. 
A)  skin is cold, but the preoptic area is at normal temperature. 
B)  temperature difference between the skin and the preoptic area is large. 
C)  skin and the preoptic area are both hot. 
D)  skin and the preoptic area are both cold.

Question 18

Which of the following groups of people would most likely benefit from taking leptin?

Accepted Answer

A)  anorexic patients 
B)  normal obese people 
C)  obese people with faulty leptin receptors 
D)  obese people who fail to produce leptin 
A)  anorexic patients 
B)  normal obese people 
C)  obese people with faulty leptin receptors 
D)  obese people who fail to produce leptin

Question 19

Variations in insulin level alter hunger by changing the:

Accepted Answer

A)  rate of emptying by the stomach. 
B)  availability of glucose to the cells. 
C)  sensitivity of the taste buds. 
D)  ability of CCK to cross the blood-brain barrier. 
A)  rate of emptying by the stomach. 
B)  availability of glucose to the cells. 
C)  sensitivity of the taste buds. 
D)  ability of CCK to cross the blood-brain barrier.

Question 20

If an animal which lacks physiological mechanisms of temperature control gets an infection, it:

Accepted Answer

A)  gets cold instead of feverish. 
B)  gets hot only at the point where the infection began. 
C)  chooses a hotter environment. 
D)  recovers faster than animals that can control body temperature. 
A)  gets cold instead of feverish. 
B)  gets hot only at the point where the infection began. 
C)  chooses a hotter environment. 
D)  recovers faster than animals that can control body temperature.

Under what condition does orexin motivate animals to eat?

After damage to the ventromedial hypothalamus, an animal will most likely:

Which of the following is NOT true about the hormone CCK (cholecystokinin)?

An increase in the size of meals is most likely to occur following damage to which area of the hypothalamus?

The lateral preoptic area and surrounding parts of the hypothalamus control:

Which of the following behaviors would be most affected by damage to the cell bodies of the lateral hypothalamus?

Orexin inhibits appetite.

Fructose, used in corn syrup as a sweetener, may lead to increased obesity by:

The blood's glucose level ordinarily remains relatively constant because of the activity of:

The two types of thirst are and .

Severe blood loss will result in a preference for:

When bacteria, viruses, fungi, or other intruders invade the body, it mobilizes ____ to attack them.

Through what mechanism does insulin affect appetite?

When food distends the duodenum, the duodenum releases which hormone?

Describe how bulimia nervosa resembles drug addiction.

After a lesion to the lateral preoptic area, a rat would react to an increase in sodium levels by:

A person most likely to shiver when the:

Which of the following groups of people would most likely benefit from taking leptin?

Variations in insulin level alter hunger by changing the:

If an animal which lacks physiological mechanisms of temperature control gets an infection, it:

The Major Issues

Nerve Cells and Nerve Impulses

Synapses

Anatomy of the Nervous System

Development and Plasticity of the Brain

Vision

The Other Sensory Systems

Movement

Wakefulness and Sleep

Reproductive Behaviors

Emotional Behaviors

The Biology of Learning and Memory

Cognitive Functions

Mood Disorders and Schizophrenia

Filters

Exam 10: Internal Regulation

Under what condition does orexin motivate animals to eat?

After damage to the ventromedial hypothalamus, an animal will most likely:

Which of the following is NOT true about the hormone CCK (cholecystokinin)?

An increase in the size of meals is most likely to occur following damage to which area of the hypothalamus?

The lateral preoptic area and surrounding parts of the hypothalamus control:

Which of the following behaviors would be most affected by damage to the cell bodies of the lateral hypothalamus?

Orexin inhibits appetite.

Fructose, used in corn syrup as a sweetener, may lead to increased obesity by:

The blood's glucose level ordinarily remains relatively constant because of the activity of:

The two types of thirst are ____ and ____.

Severe blood loss will result in a preference for:

When bacteria, viruses, fungi, or other intruders invade the body, it mobilizes ____ to attack them.

Through what mechanism does insulin affect appetite?

When food distends the duodenum, the duodenum releases which hormone?

Describe how bulimia nervosa resembles drug addiction.

After a lesion to the lateral preoptic area, a rat would react to an increase in sodium levels by:

A person most likely to shiver when the:

Which of the following groups of people would most likely benefit from taking leptin?

Variations in insulin level alter hunger by changing the:

If an animal which lacks physiological mechanisms of temperature control gets an infection, it:

The Major Issues

Nerve Cells and Nerve Impulses

Synapses

Anatomy of the Nervous System

Development and Plasticity of the Brain

Vision

The Other Sensory Systems

Movement

Wakefulness and Sleep

Reproductive Behaviors

Emotional Behaviors

The Biology of Learning and Memory

Cognitive Functions

Mood Disorders and Schizophrenia

Filters

The two types of thirst are and .