Question 1

The regulation of which of the following is NOT part of maintaining homeostasis?

Accepted Answer

A)  blood-glucose levels 
B)  salt concentration of body fluids 
C)  blood pressure 
D)  body temperature 
E)  room temperature 
A)  blood-glucose levels 
B)  salt concentration of body fluids 
C)  blood pressure 
D)  body temperature 
E)  room temperature

Question 2

Which statement best explains why the human body does not tolerate internal temperature changes very well?

Accepted Answer

A)  The enzymes that catalyze the chemical reactions in our bodies function only within a very narrow temperature range. 
B)  Our lungs cannot expand when the internal body temperature changes. 
C)  The enzymes that catalyze the chemical reactions in our bodies require the temperatures to fluctuate continuously. 
D)  Our lungs cannot contract when the internal body temperature changes. 
E)  Internal temperature changes lead to external temperature changes,and humans cannot tolerate external temperature changes. 
A)  The enzymes that catalyze the chemical reactions in our bodies function only within a very narrow temperature range. 
B)  Our lungs cannot expand when the internal body temperature changes. 
C)  The enzymes that catalyze the chemical reactions in our bodies require the temperatures to fluctuate continuously. 
D)  Our lungs cannot contract when the internal body temperature changes. 
E)  Internal temperature changes lead to external temperature changes,and humans cannot tolerate external temperature changes.

Question 3

Which of the following is NOT a factor for which the body has a set point,or narrow range within which it must be maintained?

Accepted Answer

A)  blood pressure 
B)  body temperature 
C)  blood-glucose concentration 
D)  blood pH 
E)  All of the answers are factors for which the body has a set point. 
A)  blood pressure 
B)  body temperature 
C)  blood-glucose concentration 
D)  blood pH 
E)  All of the answers are factors for which the body has a set point.

Question 4

The concentration of dissolved solutes in blood is called

Accepted Answer

A)  osmoregulation. 
B)  osmolarity. 
C)  tonicity. 
D)  thymolarity. 
E)  hemotonicity. 
A)  osmoregulation. 
B)  osmolarity. 
C)  tonicity. 
D)  thymolarity. 
E)  hemotonicity.

Question 5

Which statement best explains why a male bodybuilder with excess muscle mass would survive longer without food than an average male with normal muscle mass?

Accepted Answer

A)  The body builder has more muscle in which to store glycogen,which can be broken down for fuel. 
B)  The body builder has more stored fat,which can be broken down for fuel. 
C)  The body builder has more glucagon stored in his liver,which can be broken down for fuel. 
D)  The body builder would not survive longer than the average male. 
E)  Excess muscle mass is associated with higher-than-normal levels of insulin production,which can be used for fuel. 
A)  The body builder has more muscle in which to store glycogen,which can be broken down for fuel. 
B)  The body builder has more stored fat,which can be broken down for fuel. 
C)  The body builder has more glucagon stored in his liver,which can be broken down for fuel. 
D)  The body builder would not survive longer than the average male. 
E)  Excess muscle mass is associated with higher-than-normal levels of insulin production,which can be used for fuel.

Question 6

Based on what you know about mechanisms for generating additional heat,you would expect someone living in a very cold environment to

Accepted Answer

A)  require many more Calories than someone living in a moderate environment. 
B)  require many fewer Calories than someone living in a moderate environment. 
C)  require the same number of Calories than someone living in a moderate environment. 
D)  require at least three times as much protein as someone living in a moderate environment. 
E)  None of the answers are correct. 
A)  require many more Calories than someone living in a moderate environment. 
B)  require many fewer Calories than someone living in a moderate environment. 
C)  require the same number of Calories than someone living in a moderate environment. 
D)  require at least three times as much protein as someone living in a moderate environment. 
E)  None of the answers are correct.

Question 7

If the concentration of solvents in the blood is too high,

Accepted Answer

A)  the hypothalamus will release antidiuretic hormone. 
B)  you need to add water to your blood. 
C)  your sense of thirst will increase. 
D)  the kidneys will excrete less water. 
E)  All of the answers are correct. 
A)  the hypothalamus will release antidiuretic hormone. 
B)  you need to add water to your blood. 
C)  your sense of thirst will increase. 
D)  the kidneys will excrete less water. 
E)  All of the answers are correct.

Question 8

Vasoconstriction is constriction of

Accepted Answer

A)  nasal passages. 
B)  skeletal muscle. 
C)  smooth muscle. 
D)  blood vessels. 
E)  lymph nodes. 
A)  nasal passages. 
B)  skeletal muscle. 
C)  smooth muscle. 
D)  blood vessels. 
E)  lymph nodes.

Question 9

Comparing temperature regulation between giraffes and humans is an example of ______;comparing the parts of an octopus's eye to a human eye would be an example of ______.

Accepted Answer

A)  anatomy;physiology 
B)  physiology;anatomy 
C)  thermoregulation;homeostasis 
D)  homeostasis;physiology 
E)  physiology;homeostasis 
A)  anatomy;physiology 
B)  physiology;anatomy 
C)  thermoregulation;homeostasis 
D)  homeostasis;physiology 
E)  physiology;homeostasis

Question 10

The hormone _______ is produced by the _______ and its release causes a decrease in blood-glucose levels.

Accepted Answer

A)  insulin;hypothalamus 
B)  glucagon;hypothalamus 
C)  glucagon;pituitary 
D)  glucagon;pancreas 
E)  insulin;pancreas 
A)  insulin;hypothalamus 
B)  glucagon;hypothalamus 
C)  glucagon;pituitary 
D)  glucagon;pancreas 
E)  insulin;pancreas

Question 11

People who are severely dehydrated produce _________________ of urine that is ___________________.

Accepted Answer

A)  a high volume;highly concentrated and dark in color 
B)  a high volume;dilute and light in color 
C)  a low volume;highly concentrated and dark in color 
D)  a low volume;dilute and light in color 
E)  a normal volume;a normal color (neither very light nor very dark) 
A)  a high volume;highly concentrated and dark in color 
B)  a high volume;dilute and light in color 
C)  a low volume;highly concentrated and dark in color 
D)  a low volume;dilute and light in color 
E)  a normal volume;a normal color (neither very light nor very dark)

Question 12

a(n.________ in blood pressure is typically followed by a(n)________ in antidiuretic hormone (ADH)release as part of a ________ feedback loop.

Accepted Answer

A)  increase;increase;negative 
B)  decrease;decrease;negative 
C)  increase;decrease;positive 
D)  decrease;increase;positive 
E)  increase;decrease;negative 
A)  increase;increase;negative 
B)  decrease;decrease;negative 
C)  increase;decrease;positive 
D)  decrease;increase;positive 
E)  increase;decrease;negative

Question 13

When the body is overheated,

Accepted Answer

A)  blood vessels near the skin surface will dilate. 
B)  lymph nodes will shrink. 
C)  the body will produce more blood to cool itself. 
D)  the heart will pause every few beats to reduce blood flow. 
E)  the body will begin to shiver. 
A)  blood vessels near the skin surface will dilate. 
B)  lymph nodes will shrink. 
C)  the body will produce more blood to cool itself. 
D)  the heart will pause every few beats to reduce blood flow. 
E)  the body will begin to shiver.

Question 14

Which statement describes what is most likely happening when you feel thirsty?

Accepted Answer

A)  The concentration of dissolved solutes in your blood has decreased. 
B)  Antidiuretic hormone (ADH)is released from the pituitary gland. 
C)  ADH signals the kidneys to excrete more water in the urine. 
D)  Blood pressure has increased. 
E)  Blood osmolarity has decreased. 
A)  The concentration of dissolved solutes in your blood has decreased. 
B)  Antidiuretic hormone (ADH)is released from the pituitary gland. 
C)  ADH signals the kidneys to excrete more water in the urine. 
D)  Blood pressure has increased. 
E)  Blood osmolarity has decreased.

Question 15

Excess sugar that is not immediately used to fuel the body can be stored as _____ in the _____.

Accepted Answer

A)  glycogen;pancreas 
B)  glucagon;liver 
C)  insulin;pancreas 
D)  insulin;liver 
E)  glycogen;liver 
A)  glycogen;pancreas 
B)  glucagon;liver 
C)  insulin;pancreas 
D)  insulin;liver 
E)  glycogen;liver

Question 16

All of these serve to increase body temperature in humans,EXCEPT

Accepted Answer

A)  vasodilation. 
B)  vasoconstriction. 
C)  shivering. 
D)  cellular metabolism. 
E)  a negative feedback loop. 
A)  vasodilation. 
B)  vasoconstriction. 
C)  shivering. 
D)  cellular metabolism. 
E)  a negative feedback loop.

Question 17

Which of the following groups is in the correct order of organization from most inclusive level to lowest level?

Accepted Answer

A)  tissues,cells,organ systems,organs 
B)  organ systems,organs,tissues,cells 
C)  cells,organ systems,tissues,organs 
D)  cells,tissues,organs,organ systems 
E)  cells,organs,organ systems,tissues 
A)  tissues,cells,organ systems,organs 
B)  organ systems,organs,tissues,cells 
C)  cells,organ systems,tissues,organs 
D)  cells,tissues,organs,organ systems 
E)  cells,organs,organ systems,tissues

Question 18

Thermoregulation in the human body directly involves all of the following organ systems,EXCEPT the ________ system.

Accepted Answer

A)  endocrine 
B)  muscular 
C)  nervous 
D)  urinary 
E)  integumentary 
A)  endocrine 
B)  muscular 
C)  nervous 
D)  urinary 
E)  integumentary

Question 19

The organ system you can easily see is the _______ system.

Accepted Answer

A)  lymphatic 
B)  skeletal 
C)  respiratory 
D)  integumentary 
E)  nervous 
A)  lymphatic 
B)  skeletal 
C)  respiratory 
D)  integumentary 
E)  nervous

Question 20

Whale blubber represents which of the following strategies for thermoregulation?

Accepted Answer

A)  trapping existing heat within the body 
B)  generating additional heat by shivering 
C)  storing energy to support shivering 
D)  burning fat via nonshivering thermogenesis 
E)  All of the answers are correct. 
A)  trapping existing heat within the body 
B)  generating additional heat by shivering 
C)  storing energy to support shivering 
D)  burning fat via nonshivering thermogenesis 
E)  All of the answers are correct.

Exam 26: Overview of Physiology

The regulation of which of the following is NOT part of maintaining homeostasis?

Which statement best explains why the human body does not tolerate internal temperature changes very well?

Which of the following is NOT a factor for which the body has a set point,or narrow range within which it must be maintained?

The concentration of dissolved solutes in blood is called

Which statement best explains why a male bodybuilder with excess muscle mass would survive longer without food than an average male with normal muscle mass?

Based on what you know about mechanisms for generating additional heat,you would expect someone living in a very cold environment to

If the concentration of solvents in the blood is too high,

Vasoconstriction is constriction of

Comparing temperature regulation between giraffes and humans is an example of ______;comparing the parts of an octopus's eye to a human eye would be an example of ______.

The hormone _______ is produced by the _______ and its release causes a decrease in blood-glucose levels.

People who are severely dehydrated produce _________________ of urine that is ___________________.

a(n.________ in blood pressure is typically followed by a(n)________ in antidiuretic hormone (ADH)release as part of a ________ feedback loop.

When the body is overheated,

Which statement describes what is most likely happening when you feel thirsty?

Excess sugar that is not immediately used to fuel the body can be stored as _____ in the _____.

All of these serve to increase body temperature in humans,EXCEPT

Which of the following groups is in the correct order of organization from most inclusive level to lowest level?

Thermoregulation in the human body directly involves all of the following organ systems,EXCEPT the ________ system.

The organ system you can easily see is the _______ system.

Whale blubber represents which of the following strategies for thermoregulation?

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Comparing temperature regulation between giraffes and humans is an example of ;comparing the parts of an octopus's eye to a human eye would be an example of .

The hormone _ is produced by the _ and its release causes a decrease in blood-glucose levels.

People who are severely dehydrated produce _ of urine that is ___.

a(n. in blood pressure is typically followed by a(n) in antidiuretic hormone (ADH)release as part of a feedback loop.

Excess sugar that is not immediately used to fuel the body can be stored as _ in the _.