Question 1

After a loss of blood volume, an animal will:

Accepted Answer

A)  drink whatever it can find, indiscriminately. 
B)  drink a great deal of pure water. 
C)  drink excessively concentrated saltwater. 
D)  alternately drink pure water and excessively concentrated saltwater. 
A)  drink whatever it can find, indiscriminately. 
B)  drink a great deal of pure water. 
C)  drink excessively concentrated saltwater. 
D)  alternately drink pure water and excessively concentrated saltwater.

Question 2

The arcuate nucleus receives only hunger signals.

Accepted Answer

A) True 
 B)False

Question 3

After an increase in the solute concentrations in the body, you will experience:

Accepted Answer

A)  a set point. 
B)  osmotic thirst. 
C)  hypovolemic thirst. 
D)  hunger. 
A)  a set point. 
B)  osmotic thirst. 
C)  hypovolemic thirst. 
D)  hunger.

Question 4

Describe the different causes and mechanisms of osmotic thirst.

Accepted Answer

Osmotic thirst is caused by an increased

Question 5

The physiological changes that defend body temperature depend on areas in and near the hypothalamus.

Accepted Answer

A) True 
 B)False

Question 6

What insulin levels would we expect to find when an animal is putting on extra fat in preparation for migration or hibernation?

Accepted Answer

A)  very low, as in diabetes 
B)  normal 
C)  high 
D)  unstable and rapidly fluctuating 
A)  very low, as in diabetes 
B)  normal 
C)  high 
D)  unstable and rapidly fluctuating

Question 7

Chronically high insulin levels lead to increased appetite by:

Accepted Answer

A)  lowering body temperature, increasing the need for nutrition. 
B)  preventing glucose from entering the cells. 
C)  causing a high percentage of available glucose to be stored as fat. 
D)  directly altering the responses of the taste buds. 
A)  lowering body temperature, increasing the need for nutrition. 
B)  preventing glucose from entering the cells. 
C)  causing a high percentage of available glucose to be stored as fat. 
D)  directly altering the responses of the taste buds.

Question 8

Some insects, frogs and fish survive extreme cold by:

Accepted Answer

A)  generating vast amounts of heat through their blood. 
B)  stocking their blood with large amounts of glycerol at the start of the winter. 
C)  allowing ice crystals to expand in their blood vessels and cells. 
D)  decreasing their surface to volume ratio. 
A)  generating vast amounts of heat through their blood. 
B)  stocking their blood with large amounts of glycerol at the start of the winter. 
C)  allowing ice crystals to expand in their blood vessels and cells. 
D)  decreasing their surface to volume ratio.

Question 9

What area of the brain is largely responsible for detecting osmotic pressure?

Accepted Answer

A)  substantia nigra 
B)  red nucleus 
C)  ventromedial hypothalamus 
D)  OVLT and subfornical organ 
A)  substantia nigra 
B)  red nucleus 
C)  ventromedial hypothalamus 
D)  OVLT and subfornical organ

Question 10

Consuming too much salt will trigger ____ thirst. Bleeding or heavy sweating will trigger ____ thirst.

Accepted Answer

A)  sympathetic, parasympathetic 
B)  parasympathetic, sympathetic 
C)  osmotic, hypovolemic 
D)  hypovolemic, osmotic 
A)  sympathetic, parasympathetic 
B)  parasympathetic, sympathetic 
C)  osmotic, hypovolemic 
D)  hypovolemic, osmotic

Question 11

The effect of an injection of a drug that blocks angiotensin II receptors would be:

Accepted Answer

A)  decreased hunger. 
B)  decreased drinking. 
C)  increased drinking. 
D)  increased blood pressure. 
A)  decreased hunger. 
B)  decreased drinking. 
C)  increased drinking. 
D)  increased blood pressure.

Question 12

CCK limits meal size.

Accepted Answer

A) True 
 B)False

Question 13

What defines a homeostatic process?

Accepted Answer

A)  the regulation of blood flow 
B)  any process governed by hormones 
C)  the maintenance of certain body variables within a fixed range 
D)  reproduction involving distinct male and female genders in a species 
A)  the regulation of blood flow 
B)  any process governed by hormones 
C)  the maintenance of certain body variables within a fixed range 
D)  reproduction involving distinct male and female genders in a species

Question 14

Vasopressin raises blood pressure by:

Accepted Answer

A)  causing the blood vessels to dilate. 
B)  constricting the blood vessels. 
C)  increasing the blood's salt concentration. 
D)  decreasing the blood's salt concentration. 
A)  causing the blood vessels to dilate. 
B)  constricting the blood vessels. 
C)  increasing the blood's salt concentration. 
D)  decreasing the blood's salt concentration.

Question 15

Electrical stimulation of a rat's lateral hypothalamus would most likely result in:

Accepted Answer

A)  an increase in food seeking behaviors. 
B)  a decrease in food seeking behaviors. 
C)  a decrease in chewing and other reflexes associated with eating. 
D)  damage to dopamine-containing axons passing through it. 
A)  an increase in food seeking behaviors. 
B)  a decrease in food seeking behaviors. 
C)  a decrease in chewing and other reflexes associated with eating. 
D)  damage to dopamine-containing axons passing through it.

Question 16

What is the cause of osmotic thirst?

Accepted Answer

A)  dryness of the throat 
B)  the availability of tasty fluids 
C)  low blood volume 
D)  increased concentration of solutes in the blood 
A)  dryness of the throat 
B)  the availability of tasty fluids 
C)  low blood volume 
D)  increased concentration of solutes in the blood

Question 17

Much of motivated behavior can be described as:

Accepted Answer

A)  diabetic feedback. 
B)  negative feedback. 
C)  positive feedback. 
D)  homeothermic mechanisms. 
A)  diabetic feedback. 
B)  negative feedback. 
C)  positive feedback. 
D)  homeothermic mechanisms.

Question 18

One way by which food in the duodenum inhibits appetite is by:

Accepted Answer

A)  inhibiting the release of CCK. 
B)  releasing CCK. 
C)  breaking down CCK into inactive components. 
D)  releasing glucagon. 
A)  inhibiting the release of CCK. 
B)  releasing CCK. 
C)  breaking down CCK into inactive components. 
D)  releasing glucagon.

Question 19

Obese people tend to produce more insulin than people of normal weight.

Accepted Answer

A) True 
 B)False

Question 20

Fat cells produce:

Accepted Answer

A)  CCK. 
B)  insulin. 
C)  neuropeptide Y. 
D)  leptin. 
A)  CCK. 
B)  insulin. 
C)  neuropeptide Y. 
D)  leptin.

After a loss of blood volume, an animal will:

The arcuate nucleus receives only hunger signals.

After an increase in the solute concentrations in the body, you will experience:

Describe the different causes and mechanisms of osmotic thirst.

The physiological changes that defend body temperature depend on areas in and near the hypothalamus.

What insulin levels would we expect to find when an animal is putting on extra fat in preparation for migration or hibernation?

Chronically high insulin levels lead to increased appetite by:

Some insects, frogs and fish survive extreme cold by:

What area of the brain is largely responsible for detecting osmotic pressure?

Consuming too much salt will trigger thirst. Bleeding or heavy sweating will trigger thirst.

The effect of an injection of a drug that blocks angiotensin II receptors would be:

CCK limits meal size.

What defines a homeostatic process?

Vasopressin raises blood pressure by:

Electrical stimulation of a rat's lateral hypothalamus would most likely result in:

What is the cause of osmotic thirst?

Much of motivated behavior can be described as:

One way by which food in the duodenum inhibits appetite is by:

Obese people tend to produce more insulin than people of normal weight.

Fat cells produce:

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

After a loss of blood volume, an animal will:

The arcuate nucleus receives only hunger signals.

After an increase in the solute concentrations in the body, you will experience:

Describe the different causes and mechanisms of osmotic thirst.

The physiological changes that defend body temperature depend on areas in and near the hypothalamus.

What insulin levels would we expect to find when an animal is putting on extra fat in preparation for migration or hibernation?

Chronically high insulin levels lead to increased appetite by:

Some insects, frogs and fish survive extreme cold by:

What area of the brain is largely responsible for detecting osmotic pressure?

Consuming too much salt will trigger ____ thirst. Bleeding or heavy sweating will trigger ____ thirst.

The effect of an injection of a drug that blocks angiotensin II receptors would be:

CCK limits meal size.

What defines a homeostatic process?

Vasopressin raises blood pressure by:

Electrical stimulation of a rat's lateral hypothalamus would most likely result in:

What is the cause of osmotic thirst?

Much of motivated behavior can be described as:

One way by which food in the duodenum inhibits appetite is by:

Obese people tend to produce more insulin than people of normal weight.

Fat cells produce:

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

Consuming too much salt will trigger thirst. Bleeding or heavy sweating will trigger thirst.