Question 1

The HIV virus infects

Accepted Answer

A)  B cells.
B)  cytotoxic T cells.
C)  suppressor T cells.
D)  helper T cells.
E)  monocytes.F) A) and E)
G) A) and B)

Question 2

Primary lymphatic organs include the

Accepted Answer

A)  tonsils and spleen.
B)  thymus and lymph nodes.
C)  red bone marrow and thymus.
D)  red bone marrow and lymph nodes.E) A) and C)
F) A) and D)

Question 3

Antibodies

Accepted Answer

A)  activate antigens.
B)  may initiate inflammation and enhance phagocytosis.
C)  are proteins produced by T helper cells.
D)  are needed for costimulation.
E)  have memory.F) A) and D)
G) A) and E)

Question 4

What areas of an antigen are recognized by lymphocytes so that they can respond?

Accepted Answer

A)  major histocompatibility complexes
B)  antigenic determinants
C)  T-cell receptors
D)  epitopes
E)  Both antigenic determinants and epitopes are correct.F) A) and B)
G) A) and C)

Question 5

Which is the proper order of events in cell-mediated immunity? (1) cloning of cytotoxic T cells and memory T cells
(2) antigen presented to T lymphocyte
(3) activation of T lymphocytes
(4) cytotoxic T cells attack target cells

Accepted Answer

A)  2,3,4,1
B)  1,4,2,3
C)  2,3,1,4
D)  3,2,4,1
E)  1,2,3,4,F) C) and D)
G) None of the above

Question 6

Which of the following is true of adaptive immunity?

Accepted Answer

A)  It is present at birth.
B)  Previous encounters with the foreign substance does not change the response.
C)  The second response is faster and stronger than the first response.
D)  Responses are general,not specific.E) A) and D)
F) None of the above

Question 7

The lymphatic system is involved in

Accepted Answer

A)  lipid absorption from the digestive tract.
B)  transporting lymph from the intestines to the liver.
C)  maintenance of pH in the tissues.
D)  production of erythrocytes.
E)  protein metabolism.F) C) and D)
G) None of the above

Question 8

What structural feature of lymphatic vessels is responsible to forward movement of lymph?

Accepted Answer

A)  over-lapping endothelial cells
B)  valves
C)  no basement membrane
D)  thin wallsE) None of the above
F) B) and D)

Question 9

Which of the following is correctly matched?

Accepted Answer

A)  IgA - found in saliva and tears
B)  IgD - can cross the placenta
C)  IgG - first to challenge the antigen
D)  IgM - antigen-binding receptor on B cells
E)  IgE - transfusion reactionsF) B) and D)
G) B) and C)

Question 10

Which of the following substances causes increased capillary permeability,chemotaxis,and vasodilation?

Accepted Answer

A)  histamine
B)  protaglandins
C)  leukotrienes
D)  complement
E)  cytokinesF) A) and D)
G) C) and E)

Question 11

Match the appropriate characteristic with the type of immunity.
-organ rejection

Accepted Answer

A)  innate immunity
B)  antibody-mediated immunity
C)  cell-mediated immunity
D)  both antibody and cell-mediated immunity
E)  innate immunity,antibody-mediated immunity and cell-mediated immunityF) B) and C)
G) A) and E)

Question 12

Match the term with the appropriate description.
-Peyer's patches

Accepted Answer

A)  lipids that cause smooth muscle relaxation and vasodilation
B)  lymph nodules aggregated in the small intestinal wall
C)  rounded epithelial structures found in the medulla of thymus
D)  areas of a lymph node where lymphocytes divide
E)  a chemical released from mast cells that causes vasodilationF) B) and E)
G) A) and B)

Question 13

In a patient experiencing a parasitic worm infection,which of the following immune cells will greatly increase in number?

Accepted Answer

A)  mast cells
B)  eosinophils
C)  monocytes
D)  neutrophils
E)  basophilsF) C) and D)
G) A) and B)

Question 14

Match the appropriate characteristic with the type of immunity.
-neutrophils and macrophages

Accepted Answer

A)  innate immunity
B)  antibody-mediated immunity
C)  cell-mediated immunity
D)  both antibody and cell-mediated immunity
E)  innate immunity,antibody-mediated immunity and cell-mediated immunityF) A) and D)
G) A) and E)

Question 15

Which of the following is NOT a mechanism of complement action?

Accepted Answer

A)  produces cytokines
B)  opsonization
C)  attracts other immune cells to the site of infection
D)  forms a MAC that leads to cell lysisE) B) and C)
F) None of the above

Question 16

Tolerance to antigens is induced by

Accepted Answer

A)  blocking costimulation.
B)  stimulating interleukin 2 production.
C)  preventing suppressor T cell proliferation.
D)  promoting the release of cytokines.
E)  stimulating helper T cell division.F) A) and B)
G) B) and E)

Question 17

If you receive an immunization for hepatitis B and produce antibodies against the hepatitis B virus,you have developed what type of adaptive immunity?

Accepted Answer

A)  active natural immunity
B)  active artificial immunity
C)  passive natural immunity
D)  passive artificial immunity
E)  active passive immunityF) D) and E)
G) A) and B)

Question 18

Match the cell of adaptive immunity with its function.
-cytotoxic T cell

Accepted Answer

A)  quick and responsive to antigen,remembers previous exposure
B)  after activitaion,differentiates to become plasma cell or memory B cell
C)  produces antibodies
D)  destroys cells by lysis or by production of cytokines
E)  activates B and effector T cellsF) B) and C)
G) C) and D)

Question 19

In the cell-mediated immune response,T cells secrete ____,which activate additional components of the immune system.

Accepted Answer

A)  antibodies
B)  complement
C)  collagen
D)  cytokines
E)  histamineF) C) and D)
G) A) and B)

Question 20

The MHC (major histocompatibility complex) class molecules

Accepted Answer

A)  are only found on B cells.
B)  are found in the nucleus of cells.
C)  allow the immune system to respond to antigens inside cells.
D)  are lipoproteins on cell surfaces.
E)  do not attach to plasma membranes.F) None of the above
G) A) and E)

Exam 22: Lymphatic System and Immunity

Which of the following is correctly matched?

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Antibodies

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In the cell-mediated immune response,T cells secrete ____,which activate additional components of the immune system.

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Match the appropriate characteristic with the type of immunity. -organ rejection

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Primary lymphatic organs include the

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What structural feature of lymphatic vessels is responsible to forward movement of lymph?

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Match the cell of adaptive immunity with its function. -cytotoxic T cell

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Tolerance to antigens is induced by

Correct AnswerverifiedShow Answer

Match the appropriate characteristic with the type of immunity. -neutrophils and macrophages

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If you receive an immunization for hepatitis B and produce antibodies against the hepatitis B virus,you have developed what type of adaptive immunity?

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The MHC (major histocompatibility complex) class molecules

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Which of the following is true of adaptive immunity?

Correct AnswerverifiedShow Answer

What areas of an antigen are recognized by lymphocytes so that they can respond?

Correct AnswerverifiedShow Answer

Which is the proper order of events in cell-mediated immunity? (1) cloning of cytotoxic T cells and memory T cells (2) antigen presented to T lymphocyte (3) activation of T lymphocytes (4) cytotoxic T cells attack target cells

Correct AnswerverifiedShow Answer

Which of the following is NOT a mechanism of complement action?

Correct AnswerverifiedShow Answer

In a patient experiencing a parasitic worm infection,which of the following immune cells will greatly increase in number?

Correct AnswerverifiedShow Answer

Match the term with the appropriate description. -Peyer's patches

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The HIV virus infects

Correct AnswerverifiedShow Answer

The lymphatic system is involved in

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Which of the following substances causes increased capillary permeability,chemotaxis,and vasodilation?

Correct AnswerverifiedShow Answer

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