Question 1

In general, lymphocytes

Accepted Answer

A)   spend most of their time in lymphatic tissue.
B)   have relatively short life spans.
C)   have two nuclei.
D)   are produced and mature only in red bone marrow.
E)   are located primarily in the blood stream.

Question 2

Hormones that slow tumor growth are called

Accepted Answer

A)   transferrins.
B)   tumor necrosis factors.
C)   interferons.
D)   radiation agents.
E)   chemotherapins.

Question 3

Frank was bitten by a rattlesnake and received anti-venom containing neutralizing antibodies. Frank received ________ immunity and he ________ long-term immunity as a result.

Accepted Answer

A)   naturally acquired passive immunity; will have
B)   artificially acquired passive immunity; will not have
C)   artificially acquired passive immunity; will have
D)   naturally acquired active immunity; will have
E)   naturally acquired active immunity; will not have

Question 4

CD8 markers are to ________ T cells as CD4 markers are to ________ T cells.

Accepted Answer

A)   suppressor; cytoxic
B)   cytoxic; helper
C)   helper; suppressor
D)   NK; cytoxic
E)   plasma; NK

Question 5

Cytokines that make a cell and its neighbors resistant to virus infection are called

Accepted Answer

A)   complement.
B)   interferons.
C)   interleukins.
D)   immunoglobulins.
E)   transferrins.

Question 6

Immunoglobulins, formed of five subunits, that are the first antibodies to be produced in response to infection, are

Accepted Answer

A)   IgA.
B)   IgD.
C)   IgE.
D)   IgG.
E)   IgM.

Question 7

In IgG, the antigen binding site is formed by the

Accepted Answer

A)   variable segment of the light chain.
B)   variable segment of the heavy chain.
C)   constant segment of the heavy chain.
D)   variable segments of both the light and heavy chains.
E)   ionized segment of the light chain and the isotropic segment of the heavy chain.

Question 8

Figure 22-1 The Structure of a Lymph Node
 
Use Figure 22-1 to answer the following questions:
-Identify the dominant cell type in the area labeled "6."

Accepted Answer

A)   T cells
B)   B cells
C)   erythrocytes
D)   platelets
E)   dendritic

Question 9

Stress can affect the immune response in all of the following ways except by

Accepted Answer

A)   inhibiting glucocorticoid release.
B)   depressing the inflammatory response.
C)   reducing the number of phagocytes.
D)   inhibiting interleukin secretion.
E)   increasing the level of cortisol.

Question 10

The term lymphadenopathy refers to

Accepted Answer

A)   a congenital lack or malformation of lymph nodes.
B)   a chronic or excessive enlargement of lymph nodes.
C)   accumulations of lymph in the tissue space.
D)   the lack of lymphocytes in peripheral circulation.
E)   increased numbers of circulating lymphocytes.

Question 11

When antigens bind to inactive B cells and are brought into the cell by endocytosis to be displayed ontheClass II MHC proteins this results in ________ of the B cells.

Accepted Answer

A)   activation
B)   sensitization
C)   co-stimulation
D)   cloning
E)   division

Question 12

A sample of John's blood shows a high level of pyrogens. This would indicate that John

Accepted Answer

A)   is feeling achy.
B)   is producing T lymphocytes.
C)   has a sore throat.
D)   is running a fever.
E)   has swollen lymph nodes.

Question 13

Antigens that trigger allergic reactions are called

Accepted Answer

A)   interferons.
B)   microbes.
C)   pyrogens.
D)   allergens.
E)   agglutinins.

Question 14

Infection with the HIV virus occurs through

Accepted Answer

A)   eating contaminated food.
B)   airborne droplets from coughs and sneezes.
C)   intimate contact with an infected person's body fluids.
D)   casual contact with an infected individual.
E)   sharing clothes with an infected individual.

Question 15

A T cell can only become activated after being physically or chemically stimulated by the abnormal targetcell in a process called

Accepted Answer

A)   costimulation.
B)   opsonization.
C)   sensitization.
D)   neutralization.
E)   precipitation.

Question 16

Immunoglobulins that attach to and sensitize mast cells and basophils are

Accepted Answer

A)   IgA.
B)   IgD.
C)   IgE.
D)   IgG.
E)   IgM.

Question 17

The medulla of a lymph node contains ________ lymphocytes and macrophages.

Accepted Answer

A)   cytotoxic T
B)   medullary
C)   NK
D)   B
E)   cordal

Question 18

________ exists when the immune system does not respond to a particular antigen.

Accepted Answer

A)   Immunity
B)   Memory
C)   Adaptation
D)   Tolerance
E)   Versatility

Question 19

The primary function of the lymphatic system is

Accepted Answer

A)   the transport of hormones.
B)   circulation of nutrients and dissolved gases.
C)   defending the body against both external and internal threats.
D)   the production and distribution of plasma proteins.
E)   the production and maturation of leukocytes.

Question 20

When an antigen is bound to a Class II MHC protein, it can activate a ________ cell.

Accepted Answer

A)   plasma
B)   helper T
C)   NK
D)   suppressor T
E)   cytotoxic T

Exam 22: The Lymphatic System and Immunity

________ exists when the immune system does not respond to a particular antigen.

Correct AnswerverifiedShow Answer

The medulla of a lymph node contains ________ lymphocytes and macrophages.

Correct AnswerverifiedShow Answer

Antigens that trigger allergic reactions are called

Correct AnswerverifiedShow Answer

Immunoglobulins, formed of five subunits, that are the first antibodies to be produced in response to infection, are

Correct AnswerverifiedShow Answer

In general, lymphocytes

Correct AnswerverifiedShow Answer

Infection with the HIV virus occurs through

Correct AnswerverifiedShow Answer

When an antigen is bound to a Class II MHC protein, it can activate a ________ cell.

Correct AnswerverifiedShow Answer

The primary function of the lymphatic system is

Correct AnswerverifiedShow Answer

When antigens bind to inactive B cells and are brought into the cell by endocytosis to be displayed ontheClass II MHC proteins this results in ________ of the B cells.

Correct AnswerverifiedShow Answer

In IgG, the antigen binding site is formed by the

Correct AnswerverifiedShow Answer

Immunoglobulins that attach to and sensitize mast cells and basophils are

Correct AnswerverifiedShow Answer

CD8 markers are to ________ T cells as CD4 markers are to ________ T cells.

Correct AnswerverifiedShow Answer

Figure 22-1 The Structure of a Lymph Node Use Figure 22-1 to answer the following questions: -Identify the dominant cell type in the area labeled "6."

Correct AnswerverifiedShow Answer

A sample of John's blood shows a high level of pyrogens. This would indicate that John

Correct AnswerverifiedShow Answer

Cytokines that make a cell and its neighbors resistant to virus infection are called

Correct AnswerverifiedShow Answer

Frank was bitten by a rattlesnake and received anti-venom containing neutralizing antibodies. Frank received ________ immunity and he ________ long-term immunity as a result.

Correct AnswerverifiedShow Answer

The term lymphadenopathy refers to

Correct AnswerverifiedShow Answer

Stress can affect the immune response in all of the following ways except by

Correct AnswerverifiedShow Answer

Hormones that slow tumor growth are called

Correct AnswerverifiedShow Answer

A T cell can only become activated after being physically or chemically stimulated by the abnormal targetcell in a process called

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

CD8 markers are to T cells as CD4 markers are to T cells.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Frank was bitten by a rattlesnake and received anti-venom containing neutralizing antibodies. Frank received immunity and he long-term immunity as a result.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified