Question 1

________ are large lymphoid nodules that are located in the walls of the pharynx.

Accepted Answer

A)  Tonsils 
B)  Peyer's patches 
C)  Lymph nodes 
D)  Immune complexes 
E)  Spleens 
A)  Tonsils 
B)  Peyer's patches 
C)  Lymph nodes 
D)  Immune complexes 
E)  Spleens

Question 2

Most of the lymph returns to the venous circulation by way of the

Accepted Answer

A)  right lymphatic duct. 
B)  thoracic duct. 
C)  cisterna chyli. 
D)  hepatic portal vein. 
E)  dural sinus. 
A)  right lymphatic duct. 
B)  thoracic duct. 
C)  cisterna chyli. 
D)  hepatic portal vein. 
E)  dural sinus.

Question 3

Each IgG has ________ binding site(s) for attachment to antigenic determinants.

Accepted Answer

A)  1 
B)  2 
C)  4 
D)  8 
E)  10 
A)  1 
B)  2 
C)  4 
D)  8 
E)  10

Question 4

In an experimental situation, a rabbit is exposed to a viral antigen to which it makes antibodies. These antibodies are then purified and injected into a human with the same viral disease. This is an example of

Accepted Answer

A)  innate immunity. 
B)  active immunization. 
C)  passive immunity. 
D)  natural immunity. 
E)  alloimmunity. 
A)  innate immunity. 
B)  active immunization. 
C)  passive immunity. 
D)  natural immunity. 
E)  alloimmunity.

Question 5

The classic pathway of complement activation begins when the complement protein binds to

Accepted Answer

A)  the cell wall of bacteria. 
B)  the plasma membrane of bacteria. 
C)  an antibody attached to an antigen. 
D)  a cell surface antigen. 
E)  a plasma protein. 
A)  the cell wall of bacteria. 
B)  the plasma membrane of bacteria. 
C)  an antibody attached to an antigen. 
D)  a cell surface antigen. 
E)  a plasma protein.

Question 6

Figure 19-1 The Structure of a Lymph Node
Use Figure 19-1 to answer the following questions:
-Identify the dominant cell type in the area labeled "4."

Accepted Answer

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

Question 7

Immunity that is genetically determined and present at birth is called ________ immunity.

Accepted Answer

A)  active 
B)  natural passive 
C)  passive 
D)  auto 
E)  innate 
A)  active 
B)  natural passive 
C)  passive 
D)  auto 
E)  innate

Question 8

Lymphocytes

Accepted Answer

A)  are all actively phagocytic. 
B)  destroy red blood cells. 
C)  respond to antigens. 
D)  are primarily found in red bone marrow. 
E)  decrease in number during infection. 
A)  are all actively phagocytic. 
B)  destroy red blood cells. 
C)  respond to antigens. 
D)  are primarily found in red bone marrow. 
E)  decrease in number during infection.

Question 9

If the disulfide bonds in IgG were broken, how many protein chains would be set free?

Accepted Answer

A)  2 
B)  4 
C)  6 
D)  8 
E)  12 
A)  2 
B)  4 
C)  6 
D)  8 
E)  12

Question 10

Inappropriate or excessive immune responses to antigens are

Accepted Answer

A)  immunodeficiency diseases. 
B)  autoimmune diseases. 
C)  allergies. 
D)  the result of stress. 
E)  signs of a weak system. 
A)  immunodeficiency diseases. 
B)  autoimmune diseases. 
C)  allergies. 
D)  the result of stress. 
E)  signs of a weak system.

Question 11

Which of these is not a property of AIDS?

Accepted Answer

A)  It kills at least 17,000 people per year in the United States. 
B)  It is spread most often through sexual contact. 
C)  It attacks the T helper (CD4) cells. 
D)  It is declining worldwide. 
E)  It is almost always eventually fatal. 
A)  It kills at least 17,000 people per year in the United States. 
B)  It is spread most often through sexual contact. 
C)  It attacks the T helper (CD4) cells. 
D)  It is declining worldwide. 
E)  It is almost always eventually fatal.

Question 12

The cells directly responsible for cell-mediated immunity are the ________ cells.

Accepted Answer

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

Question 13

When large numbers of antibodies encounter their antigenic targets, they interact to form a three-dimensional structure known as a(n) ________.

Accepted Answer

The answer of When large numbers of antibodies encounter their...

Question 14

The process by which the surface of a microorganism is covered with antibodies and complement, rendering it more likely to be phagocytized, is called ________.

Accepted Answer

The answer of The process by which the surface of...

Question 15

Suppressor T cells act to

Accepted Answer

A)  suppress antigens. 
B)  erase memory T cells. 
C)  limit antigen proliferation. 
D)  inhibit T and B cell activities. 
E)  produce antibodies involved in autoimmunity. 
A)  suppress antigens. 
B)  erase memory T cells. 
C)  limit antigen proliferation. 
D)  inhibit T and B cell activities. 
E)  produce antibodies involved in autoimmunity.

Question 16

The cells that perform immunological surveillance are the ________ cells.

Accepted Answer

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

Question 17

All of the following are True of the secondary response of humoral immunity, except that it

Accepted Answer

A)  depends on memory B cells. 
B)  results in much higher antibody titers than in the primary response. 
C)  results in much quicker rise in antibody titers. 
D)  produces more IgG antibodies. 
E)  weakens quickly because memory B cells only survive for a year or two. 
A)  depends on memory B cells. 
B)  results in much higher antibody titers than in the primary response. 
C)  results in much quicker rise in antibody titers. 
D)  produces more IgG antibodies. 
E)  weakens quickly because memory B cells only survive for a year or two.

Question 18

T cells and B cells can be activated only by

Accepted Answer

A)  pathogens. 
B)  interleukins, interferons, and colony-stimulating factors. 
C)  cells infected with viruses, bacteria, or cancer cells. 
D)  exposure to a specific antigen at a specific site in a plasma membrane. 
E)  disease-causing agents. 
A)  pathogens. 
B)  interleukins, interferons, and colony-stimulating factors. 
C)  cells infected with viruses, bacteria, or cancer cells. 
D)  exposure to a specific antigen at a specific site in a plasma membrane. 
E)  disease-causing agents.

Question 19

Specific defenses depend on the activities of

Accepted Answer

A)  monocytes. 
B)  leukocytes. 
C)  agranulocytes. 
D)  erythrocytes. 
E)  lymphocytes. 
A)  monocytes. 
B)  leukocytes. 
C)  agranulocytes. 
D)  erythrocytes. 
E)  lymphocytes.

Question 20

The first line of cellular defense against pathogens are the

Accepted Answer

A)  T cells. 
B)  B cells. 
C)  NK cells. 
D)  phagocytes. 
E)  plasma cells. 
A)  T cells. 
B)  B cells. 
C)  NK cells. 
D)  phagocytes. 
E)  plasma cells.

Exam 19: The Lymphatic System and Immunity

________ are large lymphoid nodules that are located in the walls of the pharynx.

Most of the lymph returns to the venous circulation by way of the

Each IgG has ________ binding site(s) for attachment to antigenic determinants.

In an experimental situation, a rabbit is exposed to a viral antigen to which it makes antibodies. These antibodies are then purified and injected into a human with the same viral disease. This is an example of

The classic pathway of complement activation begins when the complement protein binds to

Figure 19-1 The Structure of a Lymph Node Use Figure 19-1 to answer the following questions: -Identify the dominant cell type in the area labeled "4."

Immunity that is genetically determined and present at birth is called ________ immunity.

Lymphocytes

If the disulfide bonds in IgG were broken, how many protein chains would be set free?

Inappropriate or excessive immune responses to antigens are

Which of these is not a property of AIDS?

The cells directly responsible for cell-mediated immunity are the ________ cells.

When large numbers of antibodies encounter their antigenic targets, they interact to form a three-dimensional structure known as a(n) ________.

The process by which the surface of a microorganism is covered with antibodies and complement, rendering it more likely to be phagocytized, is called ________.

Suppressor T cells act to

The cells that perform immunological surveillance are the ________ cells.

All of the following are True of the secondary response of humoral immunity, except that it

T cells and B cells can be activated only by

Specific defenses depend on the activities of

The first line of cellular defense against pathogens are the

An Introduction to Anatomy and Physiology

Chemical Level of Organization

Cellular Level of Organization

Tissue Level of Organization

The Integumentary System

Osseous Tissue and Bone Structure

The Skeleton

Articulations

Skeletal Muscle Tissue

The Muscular System

Neural Tissue

The Spinal Cord, Spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

The Autonomic Nervous System

The Special Senses

The Endocrine System

Blood and Blood Vessels

The Heart and Cardiovascular Function

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

Fluid, Electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

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