Question 1

Describe the wall of lymphatic capillaries.

Accepted Answer

A)   Thin-walled, with tightly joined squamous cells
B)   Thin-walled, with tightly joined cuboidal cells
C)   Thick-walled, with overlapping squamous cells
D)   Thick-walled, with tightly joined squamous cells
E)   Thin-walled, with overlapping squamous cells

Question 2

An opsonin is a __________________.

Accepted Answer

A)   subclass of immunoglobulin.
B)   compound released by leukocytes that aids in the immune response to an antigen.
C)   substance that promotes fever.
D)   compound released by leukocytes that inhibits the immune response to an antigen.
E)   substance that makes antigens more susceptible to phagocytosis.

Question 3

Match the cell of adaptive immunity with its function.
-B 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 cells

Question 4

Why is a cell-mediated immune response more effective against intracellular microorganisms (such as viruses)  than an antibody-mediated response?

Accepted Answer

A)   Cell-mediated (vs. antibody-mediated)  response results in activation of a many more immune cells, so it is more effective at destroying antigens
B)   Intracellular microorganisms are too large for antibodies to be effective against
C)   Intracellular microorganisms are too small for antibodies to be effective against
D)   Cell-mediated response results in destruction of cell containing the intracellular microorganism; antibodies can't enter cells

Question 5

Mucosal associated lymphatic tissues (MALT)  are:

Accepted Answer

A)   aggregates of macrophages located in the intestines.
B)   clusters of splenocytes located in the lamina propria of mucous membranes.
C)   clumps of mucous lining the lumen of the gastrointestinal tract.
D)   aggregates of lymphatic tissue scattered throughout the lamina propria of mucous membranes.

Question 6

All of the following are interactions between cell mediated immunity and innate immunity, except

Accepted Answer

A)   Macrophage of innate immunity present antigens to helper T cells.
B)   Cytokines secreted by helper T cells stimulate inflammation.
C)   Cytokines secreted by helper T cells stimulate phagocytosis.
D)   Macrophages of innate immunity present antigens to cytotoxic T cells.

Question 7

The type of cell responsible for the secondary response is a

Accepted Answer

A)   mast cell.
B)   macrophage.
C)   memory cell.
D)   red blood cell.
E)   monocyte.

Question 8

Match the appropriate characteristic with the type of immunity.
-ability to resist damage from foreign substances such as microorganisms and harmful chemicals

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 immunity

Question 9

Match the cell of adaptive immunity with its function.
-helper 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 cells

Question 10

Macrophages

Accepted Answer

A)   are derived from basophils.
B)   reduce the inflammatory response.
C)   are responsible for most phagocytic activity in the late stages of an infection.
D)   produce cytokines that aid in the destruction of antigens.
E)   are the first at the site of infection.

Question 11

The HIV virus can be transmitted

Accepted Answer

A)   only from males to other males.
B)   during unprotected sexual intercourse.
C)   by coughing or sneezing.
D)   by contact with people at work.
E)   by hugging an infected child.

Question 12

The HIV virus infects

Accepted Answer

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

Question 13

Transfusing a person with plasma proteins from a person or an animal that has been actively immunized against a specific antigen provides

Accepted Answer

A)   active immunity.
B)   passive immunity.
C)   no immunity.
D)   autoimmunity.
E)   natural immunity.

Question 14

Match the cell of adaptive immunity with its function.
-plasma 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 cells

Question 15

Match the appropriate characteristic with the type of immunity.
-cells mature in thymus gland

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 immunity

Question 16

The only structures that filter lymph is/are the

Accepted Answer

A)   tonsils.
B)   spleen.
C)   lymph nodes.
D)   thymus.

Question 17

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.

Question 18

In immunodeficiency diseases,

Accepted Answer

A)   the immune system fails to distinguish between self-antigens and foreign antigens.
B)   inadequate B and/or T cell formation may occur.
C)   IgE mediates a localized reaction.
D)   serum sickness results.
E)   immune surveillance occurs.

Question 19

Antibodies are produced by

Accepted Answer

A)   cytotoxic T cells stimulated by helper T cells.
B)   helper T cells stimulated by various cytokines.
C)   B cells that differentiate to form plasma cells.
D)   natural killer cells as they lyse cancer cells.
E)   the red bone marrow.

Question 20

Once cytotoxic T cells are produced, which of the following is (are)  consistent with their ability to attack intracellular viruses?

Accepted Answer

A)   Most nucleated cells process antigens through the MHC class I mechanisms.
B)   Viral antigens are processed by the MHC class I mechanism and are presented to the cell surface.
C)   Cytotoxic T cells bind to MHC class I processed antigens.
D)   Cytotoxic T cells bound to the MHC class I processed antigens release lymphokines.
E)   All of these choices are correct.

Exam 22: Lymphatic System and Immunity

The type of cell responsible for the secondary response is a

Correct AnswerverifiedShow Answer

Match the cell of adaptive immunity with its function. -plasma cell

Correct AnswerverifiedShow Answer

The HIV virus infects

Correct AnswerverifiedShow Answer

Macrophages

Correct AnswerverifiedShow Answer

All of the following are interactions between cell mediated immunity and innate immunity, except

Correct AnswerverifiedShow Answer

Mucosal associated lymphatic tissues (MALT) are:

Correct AnswerverifiedShow Answer

Match the cell of adaptive immunity with its function. -B cell

Correct AnswerverifiedShow Answer

An opsonin is a __________________.

Correct AnswerverifiedShow Answer

Why is a cell-mediated immune response more effective against intracellular microorganisms (such as viruses) than an antibody-mediated response?

Correct AnswerverifiedShow Answer

In immunodeficiency diseases,

Correct AnswerverifiedShow Answer

Once cytotoxic T cells are produced, which of the following is (are) consistent with their ability to attack intracellular viruses?

Correct AnswerverifiedShow Answer

Transfusing a person with plasma proteins from a person or an animal that has been actively immunized against a specific antigen provides

Correct AnswerverifiedShow Answer

Match the appropriate characteristic with the type of immunity. -cells mature in thymus gland

Correct AnswerverifiedShow Answer

Describe the wall of lymphatic capillaries.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Match the appropriate characteristic with the type of immunity. -ability to resist damage from foreign substances such as microorganisms and harmful chemicals

Correct AnswerverifiedShow Answer

The only structures that filter lymph is/are the

Correct AnswerverifiedShow Answer

Antibodies are produced by

Correct AnswerverifiedShow Answer

The HIV virus can be transmitted

Correct AnswerverifiedShow Answer

Which of the following is true of adaptive immunity?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified