Question 1

The chemical found in tears and saliva that hydrolyzes the peptidoglycan in certain bacterial cell walls is ______.

Accepted Answer

A)   lactic acid
B)   bile
C)   histamine
D)   hydrochloric acid
E)   lysozymeF) A) and B)
G) D) and E)

Question 2

You cut your finger dicing chicken for dinner.Which of the following is not a source of chemicals that stimulate the inflammatory response that results from the injury?

Accepted Answer

A)   Bacterial cells that infect the wound
B)   Antibody-producing plasma cells
C)   Localized leukocytes
D)   Host tissues damaged by the knifeE) All of the above
F) C) and D)

Question 3

All of the following are events of early inflammation except

Accepted Answer

A)   macrophages appear first and begin phagocytosis.
B)   chemical mediators and cytokines are released.
C)   brief vasoconstriction is followed by vasodilation.
D)   exudate and pus can accumulate.
E)   capillaries become more permeable, resulting in edema.F) None of the above
G) C) and D)

Question 4

The second line of defense includes inflammation,phagocytosis,fever,and antimicrobial proteins.

Accepted Answer

A) True 
 B)False

Question 5

All of the following pertain to platelets,except

Accepted Answer

A)   they are not whole cells but are pieces of cells.
B)   they originate from giant multinucleate cells called megakaryocytes.
C)   they function in blood clotting and inflammation.
D)   they function primarily in hemostasis.
E)   they contain hemoglobin to transport oxygen and carbon dioxide.F) B) and D)
G) A) and C)

Question 6

Which of the following fluid compartments is not a partner in immune function?

Accepted Answer

A)   Extracellular fluid
B)   Intracellular fluid
C)   Blood stream
D)   Lymphatic systemE) B) and C)
F) None of the above

Question 7

Which of the following is not an event of phagocytosis?

Accepted Answer

A)   Ingestion
B)   Destruction
C)   Diapedesis
D)   Chemotaxis
E)   Phagolysosome formationF) C) and D)
G) A) and B)

Question 8

Which protein can be produced by a virus-infected cell,in order to communicate with other cells that need to produce antiviral proteins?

Accepted Answer

A)   Albumin
B)   Histamine
C)   Interferon
D)   Complement
E)   LysozymeF) C) and E)
G) C) and D)

Question 9

Keratin is an important aspect of nonspecific defense because it

Accepted Answer

A)   is toxic to pathogens.
B)   destroys pathogens.
C)   physically restricts pathogens to a specific region.
D)   creates a physical barrier against pathogens.E) A) and B)
F) None of the above

Question 10

Which of the following represents the correct order of activity in the complement cascade?

Accepted Answer

A)   Amplification, initiation, membrane attack, and polymerization
B)   Polymerization, initiation, membrane attack, and amplification
C)   Initiation, membrane attack, polymerization, and amplification
D)   Membrane attack, initiation, polymerization, and amplification
E)   Initiation, amplification, polymerization, and membrane attackF) A) and E)
G) C) and D)

Question 11

What is the first step in the major events of the inflammatory process?

Accepted Answer

A)   Activation of complement
B)   Vascular reactions
C)   Injury and mast cells releasing chemical mediators
D)   Formation of pus and edema
E)   Scar formation and/or resolutionF) C) and D)
G) C) and E)

Question 12

The granules of eosinophils contain ______.

Accepted Answer

A)   peroxidase
B)   antigens
C)   histamine
D)   antibodies
E)   serotoninF) C) and D)
G) A) and D)

Question 13

The circulating substances that affect the hypothalamus and initiate fever are ______.

Accepted Answer

A)   interferons
B)   lysozymes
C)   complement
D)   leukotrines
E)   pyrogensF) B) and C)
G) B) and E)

Question 14

The mononuclear phagocyte system (MPS) is an intricate network throughout the body that comprises

Accepted Answer

A)   connective tissue and monocytes.
B)   connective tissue and lymphocytes.
C)   connective tissue fibers and phagocytic white blood cells.
D)   connective tissue fibers, mast cells, and basophils.E) A) and B)
F) A) and C)

Question 15

Monocytes are the mature form of macrophages; they are found in tissues.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following is mismatched in relation to inflammation?

Accepted Answer

A)   Tumor - cancer
B)   Rubor - redness
C)   Dolor - pain
D)   Calor - warmthE) None of the above
F) B) and D)

Question 17

Your 81-year old grandfather has been diagnosed with cancer of the thymus.The doctor is urging surgical removal of the cancer,but you and the family are worried about the consequences of removing an entire organ such as the thymus.Which statement is correct?

Accepted Answer

A)   Your grandfather would not be able to produce complement proteins necessary for pathogen control and inflammation.
B)   Your grandfather will have a loss of T lymphocytes and will have an immune deficiency.
C)   Your grandfather would not have sufficient phagocytic cells and would not be able to contain bacterial infections.
D)   There is nothing to worry about; thymus removal will not affect your grandfather's immune status at his age.E) A) and C)
F) All of the above

Question 18

All of the following comprise the second line of defense except ______.

Accepted Answer

A)   phagocytosis
B)   fever
C)   inflammation
D)   antibody production
E)   complement proteinsF) B) and C)
G) None of the above

Question 19

You have severe itching problems when bitten by an insect.Your friend gives you an ointment to spread on your skin around the bite so that the redness and itching do not bother you.The likely mechanism of this medication would be

Accepted Answer

A)   the inactivation of neutrophils.
B)   the destruction of phagocytic cells.
C)   to act as an antagonist of histamine.
D)   the inhibition of lysozyme.E) A) and B)
F) B) and C)

Question 20

B lymphocytes and T lymphocytes mature in the thymus gland.

Accepted Answer

A) True 
 B)False

Exam 14: Host Defenses I: Overview and Nonspecific Defenses

Which of the following is not an event of phagocytosis?

Correct AnswerverifiedShow Answer

All of the following are events of early inflammation except

Correct AnswerverifiedShow Answer

B lymphocytes and T lymphocytes mature in the thymus gland.

Correct AnswerverifiedShow Answer

All of the following comprise the second line of defense except ______.

Correct AnswerverifiedShow Answer

All of the following pertain to platelets,except

Correct AnswerverifiedShow Answer

Keratin is an important aspect of nonspecific defense because it

Correct AnswerverifiedShow Answer

The mononuclear phagocyte system (MPS) is an intricate network throughout the body that comprises

Correct AnswerverifiedShow Answer

The second line of defense includes inflammation,phagocytosis,fever,and antimicrobial proteins.

Correct AnswerverifiedShow Answer

Your 81-year old grandfather has been diagnosed with cancer of the thymus.The doctor is urging surgical removal of the cancer,but you and the family are worried about the consequences of removing an entire organ such as the thymus.Which statement is correct?

Correct AnswerverifiedShow Answer

The circulating substances that affect the hypothalamus and initiate fever are ______.

Correct AnswerverifiedShow Answer

Which of the following is mismatched in relation to inflammation?

Correct AnswerverifiedShow Answer

You have severe itching problems when bitten by an insect.Your friend gives you an ointment to spread on your skin around the bite so that the redness and itching do not bother you.The likely mechanism of this medication would be

Correct AnswerverifiedShow Answer

You cut your finger dicing chicken for dinner.Which of the following is not a source of chemicals that stimulate the inflammatory response that results from the injury?

Correct AnswerverifiedShow Answer

Monocytes are the mature form of macrophages; they are found in tissues.

Correct AnswerverifiedShow Answer

The granules of eosinophils contain ______.

Correct AnswerverifiedShow Answer

Which of the following represents the correct order of activity in the complement cascade?

Correct AnswerverifiedShow Answer

What is the first step in the major events of the inflammatory process?

Correct AnswerverifiedShow Answer

Which of the following fluid compartments is not a partner in immune function?

Correct AnswerverifiedShow Answer

Which protein can be produced by a virus-infected cell,in order to communicate with other cells that need to produce antiviral proteins?

Correct AnswerverifiedShow Answer

The chemical found in tears and saliva that hydrolyzes the peptidoglycan in certain bacterial cell walls is ______.

Correct AnswerverifiedShow Answer

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