Question 1

Which of the following would be an example of chemotaxis?

Accepted Answer

A)   A white blood cell moves toward an injury site due to the release of certain chemicals by injured cells.
B)   Platelets are attracted to the rough surface of damaged blood vessels.
C)   Red blood cells move due to pressure gradients generated by the heart.
D)   A white blood cell can move into and out of blood vessels.E) None of the above
F) B) and C)

Question 2

Transplanted tissues and organs that contain ________ are rejected by the body.

Accepted Answer

A)   self-antigens
B)   foreign antigens
C)   foreign antibodies
D)   self-antibodies
E)   plasma proteinsF) A) and B)
G) All of the above

Question 3

Match the appropriate characteristic with the type of immunity.
-Origin of cells is red bone marrow

Accepted Answer

A)  Innate immunity
B)  Antibody-mediated immunity
C)  Cell-mediated immunity
D)  Both antibody-mediated and cell-mediated immunity
E)  Innate immunity, antibody-mediated immunity, and cell-mediated immunityF) A) and D)
G) C) and D)

Question 4

A child is born with a congenital disease that results in total loss of B cells. Which of the following would be a consequence of this immunodeficiency?

Accepted Answer

A)   No lymphokine production
B)   Lack of antibody formation
C)   Nonfunctioning complement system
D)   Inability to form any type of memory cell
E)   No antigens on the cellsF) A) and B)
G) A) and C)

Question 5

An individual develops a cold from a co-worker. This is an example of ________ immunity.

Accepted Answer

A)   active artificial
B)   passive natural
C)   passive artificial
D)   active naturalE) All of the above
F) C) and D)

Question 6

A cell has experienced a mutation that results in uncontrolled cell division. Which of the following types of defense cell would most likely interact with the mutated cell and how?

Accepted Answer

A)   This is a cytotoxic T cell that interacts with the mutated cell through an MHC class I molecule.
B)   This is a cytotoxic T cell that interacts with the mutated cell through an MHC class II molecule.
C)   This is an antigen-presenting cell that interacts with the mutated cell through an MHC class I molecule.
D)   This is an antigen-presenting cell that interacts with the mutated cell through an MHC class II molecule.E) All of the above
F) A) and D)

Question 7

When innate immunity is activated,

Accepted Answer

A)   each exposure is very specific.
B)   previous exposures are remembered.
C)   each exposure produces the same response.
D)   each exposure increases the strength of the immune response.
E)   the second exposure does not produce a response.F) B) and C)
G) B) and D)

Question 8

A surface chemical that prevents microbial growth is ________.

Accepted Answer

A)   histamine
B)   leukotriene
C)   sebum
D)   kinin
E)   interferonF) None of the above
G) A) and C)

Question 9

Complement proteins

Accepted Answer

A)   can form holes in the plasma membrane of target cells.
B)   are on the surface of macrophages.
C)   are hormones found in the blood.
D)   may cause the release of interferon.
E)   do not attract neutrophils, monocytes, macrophages, or eosinophils.F) A) and E)
G) B) and D)

Question 10

Peyer patches are lymphatic nodules found in the ________.

Accepted Answer

A)   lymph nodes
B)   spleen and tonsils
C)   appendix and tonsils
D)   small intestine and appendixE) All of the above
F) C) and D)

Question 11

________ are part of cell-mediated immunity while ________ are part of antibody-mediated immunity.

Accepted Answer

A)   B cells; NK cells
B)   Antibodies; antigens
C)   T cells; B cells
D)   Macrophages; antibodies
E)   Neutrophils; monocytesF) All of the above
G) B) and D)

Question 12

Antibodies secreted in breast milk

Accepted Answer

A)   are IgG antibodies.
B)   are IgA antibodies.
C)   provide natural active adaptive immunity.
D)   include the cytokine interleukin 2.
E)   promote inflammation.F) C) and D)
G) B) and C)

Question 13

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-mediated and cell-mediated immunity
E)  Innate immunity, antibody-mediated immunity, and cell-mediated immunityF) B) and D)
G) None of the above

Question 14

A patient's blood analyses indicated an increase in the number of eosinophils. Which of the following is the most likely cause?

Accepted Answer

A)   Viral infection
B)   Parasitic worm infection
C)   Bacterial infection
D)   Tumor cellsE) A) and B)
F) A) and C)

Question 15

An abnormal, exaggerated response of the immune system is called ________.

Accepted Answer

A)   immunization
B)   an innate immune response
C)   hypersensitivity
D)   excess immunity
E)   toleranceF) B) and C)
G) B) and D)

Question 16

Match the appropriate characteristic with the type of immunity.
-Protection against intracellular antigens

Accepted Answer

A)  Innate immunity
B)  Antibody-mediated immunity
C)  Cell-mediated immunity
D)  Both antibody-mediated and cell-mediated immunity
E)  Innate immunity, antibody-mediated immunity, and cell-mediated immunityF) A) and E)
G) A) and D)

Question 17

Which of the following is not a sign nor symptom of local inflammation?

Accepted Answer

A)   Redness
B)   Edema
C)   Heat
D)   Pain
E)   HemorrhageF) A) and B)
G) B) and D)

Question 18

Natural Killer (NK)  cells

Accepted Answer

A)   are a type of macrophage.
B)   are a type of plasma cell.
C)   secrete enzymes that kill tumor or virus-infected cells.
D)   are derived from B cells.
E)   promote inflammation.F) None of the above
G) A) and B)

Question 19

Cytotoxic T cells

Accepted Answer

A)   produce antibodies for general circulation.
B)   attach to the surface of cells, causing them to lyse.
C)   cause precipitation of antigens.
D)   have IgG antibodies on their cell membranes.
E)   are destroyed after contact killing.F) C) and D)
G) A) and E)

Question 20

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) D) and E)
G) All of the above

Exam 22: Lymphatic System and Immunity

When innate immunity is activated,

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Cytotoxic T cells

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Peyer patches are lymphatic nodules found in the ________.

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Match the appropriate characteristic with the type of immunity. -Protection against intracellular antigens

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Transplanted tissues and organs that contain ________ are rejected by the body.

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An abnormal, exaggerated response of the immune system is called ________.

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Which of the following would be an example of chemotaxis?

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

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A child is born with a congenital disease that results in total loss of B cells. Which of the following would be a consequence of this immunodeficiency?

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A surface chemical that prevents microbial growth is ________.

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A cell has experienced a mutation that results in uncontrolled cell division. Which of the following types of defense cell would most likely interact with the mutated cell and how?

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An individual develops a cold from a co-worker. This is an example of ________ immunity.

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Antibodies secreted in breast milk

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Natural Killer (NK) cells

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Which of the following is not a sign nor symptom of local inflammation?

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Match the appropriate characteristic with the type of immunity. -Origin of cells is red bone marrow

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________ are part of cell-mediated immunity while ________ are part of antibody-mediated immunity.

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

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Complement proteins

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A patient's blood analyses indicated an increase in the number of eosinophils. Which of the following is the most likely cause?

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are part of cell-mediated immunity while are part of antibody-mediated immunity.

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