Question 1

Which of the following is not a mechanism for the development of autoimmune disorders?

Accepted Answer

A)   cross-reaction of antibodies formed against foreign antigens (haptens)  bound with self-antigens
B)   mutation followed by the appearance of membrane proteins not previously present
C)   exposure of previously "hidden" self-antigens to the adaptive immune system during trauma
D)   a second exposure to an allergenE) None of the above
F) B) and C)

Question 2

A woman comes into the hospital emergency room complaining that she is having problems swallowing and her neck is swelling.She has a history of radiation treatment to her neck as a child for acne.What could be the problem?

Accepted Answer

The woman is suffering from Hashimoto's ...

Question 3

What is the role of interferon in defense against disease?

Accepted Answer

A)   protects cells that have not yet been infected by viruses
B)   activates the inflammatory process
C)   activates the complement mechanism
D)   protects cells that have not yet been infected by bacteriaE) A) and C)
F) None of the above

Question 4

Match the following:
-Forms antibody producing cells.

Accepted Answer

A)  Regulatory T cell
B)  Memory cell
C)  Helper T cell
D)  B cell
E)  Cytotoxic T cellF) A) and E)
G) B) and E)

Question 5

Select the best description of the negative selection process of lymphocyte maturation.

Accepted Answer

A)   removal of lymphocytes that fail to recognize "self" cells
B)   teaching a lymphocyte to recognize "self" from foreign antigens
C)   removal of lymphocytes that react with "self" cells
D)   allowing the survival of lymphocytes that cannot bind to MHC proteinsE) None of the above
F) C) and D)

Question 6

Inflammation ________.

Accepted Answer

A)   is caused by bacterial activity to enhance the spread of disease
B)   brings more leukocytes to the sight of infection
C)   is caused by viral activity to enhance the spread of the disease
D)   slows the healing process with swelling that can impair bodily functionE) A) and C)
F) A) and B)

Question 7

All but one of the following occur during the inflammatory response.Select the example below that does not describe the process of inflammation.

Accepted Answer

A)   Vasoconstriction will prevent excessive blood loss due to injury.
B)   Chemotaxis draws leucocytes to the site of injury.
C)   Increases capillary permeability.
D)   Release of prostaglandins resulting in pain.E) A) and C)
F) A) and B)

Question 8

Choose the best description of an antigen.

Accepted Answer

A)   part or a piece of a disease or pathogen
B)   a particle that triggers the adaptive immunity
C)   a particle (typically a foreign protein)  that triggers inflammation
D)   a chemical that enhances or modifies immune responseE) B) and D)
F) C) and D)

Question 9

A vaccine is effective because ________.

Accepted Answer

A)   B-lymphocytes are unable to mount an immune response the first time they are exposed to a new pathogen
B)   the secondary response of the adaptive immunity is faster and more efficient the primary response
C)   the vaccine contains the lymphocytes necessary to fight infection
D)   the vaccine contains the antibodies necessary to fight infectionE) None of the above
F) A) and B)

Question 10

Which of the following is not a complement activation pathway?

Accepted Answer

A)   lectin pathway
B)   alternative pathway
C)   lactate pathway
D)   classical pathwayE) B) and C)
F) C) and D)

Question 11

Which of the following is not a function of the inflammatory response?

Accepted Answer

A)   prevents the spread of the injurious agent to nearby tissue
B)   disposes of cellular debris and pathogens
C)   replaces injured tissues with connective tissue
D)   sets the stage for repair processesE) A) and C)
F) C) and D)

Question 12

Soluble proteins secreted by plasma cells are called antibodies.

Accepted Answer

A) True 
 B)False

Question 13

Antibody functions include all of the following except ________.

Accepted Answer

A)   targeting foreign cells so that complement proteins can cause cellular lysis
B)   cross-linking cell-bound antigens on red blood cells when blood types are properly matched
C)   linking soluble antigens together so that they fall out of solution
D)   binding and inactivating chemical toxins released by bacteria or other microorganismsE) All of the above
F) C) and D)

Question 14

Which immunoglobulin class is attached to the external surface of B cells and acts as an antigen receptor of the B cell?

Accepted Answer

A)   IgE
B)   IgD
C)   IgG
D)   IgM
E)   IgAF) All of the above
G) A) and B)

Question 15

When the white blood cell count is depressed,the classic signs of infection such as redness,heat,and swelling are not manifested.In this case,the nurse should avoid administering aspirin.Explain why.

Accepted Answer

Aspirin would disgui...

Question 16

Which of the following does not describe actions of interferon (IFN) ?

Accepted Answer

A)   IFN binds to normal, uninfected cells stimulating the activation of genes that produce anti-viral proteins.
B)   IFN can penetrate the viral capsid and destroy the virus.
C)   Virally infected cells can release interferon which attracts NK cells to attack and kill the IFN secreting cell.
D)   IFN will attract macrophages to the secreting cell to be removed by phagocytosis.E) A) and D)
F) B) and C)

Question 17

B lymphocytes develop immunocompetence in the ________.

Accepted Answer

A)   bone marrow
B)   lymph nodes
C)   thymus
D)   spleenE) A) and C)
F) A) and D)

Question 18

Figure 21.1
Using Figure 21.1, match the following:
-Variable region.

Accepted Answer

A)  B
B)  D
C)  A
D)  E
E)  CF) A) and B)
G) D) and E)

Question 19

Match the following:
-Second line of defense.

Accepted Answer

A)  Intact skin and mucous membranes
B)  Inflammatory response and skin and mucous membranes
C)  Inflammatory response
D)  Immune responseE) A) and B)
F) A) and C)

Question 20

Which of the following is characteristic of complete antigens?

Accepted Answer

A)   inhibit production of antibodies
B)   contain many repeating chemical units
C)   small molecules
D)   reactivity with an antibodyE) B) and D)
F) A) and C)

Exam 21: The Immune System: Innate and Adaptive Body Defenses

Which of the following does not describe actions of interferon (IFN) ?

Correct AnswerverifiedShow Answer

Figure 21.1 Using Figure 21.1, match the following: -Variable region.

Correct AnswerverifiedShow Answer

Which immunoglobulin class is attached to the external surface of B cells and acts as an antigen receptor of the B cell?

Correct AnswerverifiedShow Answer

Match the following: -Second line of defense.

Correct AnswerverifiedShow Answer

Which of the following is not a mechanism for the development of autoimmune disorders?

Correct AnswerverifiedShow Answer

What is the role of interferon in defense against disease?

Correct AnswerverifiedShow Answer

Antibody functions include all of the following except ________.

Correct AnswerverifiedShow Answer

When the white blood cell count is depressed,the classic signs of infection such as redness,heat,and swelling are not manifested.In this case,the nurse should avoid administering aspirin.Explain why.

Correct AnswerverifiedAspirin would disgui...View AnswerShow Answer

Inflammation ________.

Correct AnswerverifiedShow Answer

A vaccine is effective because ________.

Correct AnswerverifiedShow Answer

Select the best description of the negative selection process of lymphocyte maturation.

Correct AnswerverifiedShow Answer

Which of the following is not a complement activation pathway?

Correct AnswerverifiedShow Answer

All but one of the following occur during the inflammatory response.Select the example below that does not describe the process of inflammation.

Correct AnswerverifiedShow Answer

A woman comes into the hospital emergency room complaining that she is having problems swallowing and her neck is swelling.She has a history of radiation treatment to her neck as a child for acne.What could be the problem?

Correct AnswerverifiedThe woman is suffering from Hashimoto's ...View AnswerShow Answer

Match the following: -Forms antibody producing cells.

Correct AnswerverifiedShow Answer

Soluble proteins secreted by plasma cells are called antibodies.

Correct AnswerverifiedShow Answer

Which of the following is not a function of the inflammatory response?

Correct AnswerverifiedShow Answer

B lymphocytes develop immunocompetence in the ________.

Correct AnswerverifiedShow Answer

Which of the following is characteristic of complete antigens?

Correct AnswerverifiedShow Answer

Choose the best description of an antigen.

Correct AnswerverifiedShow Answer

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Aspirin would disgui...
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The woman is suffering from Hashimoto's ...
View Answer

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