Question 1

Defense of the body against a particular pathogen is provided by

Accepted Answer

A)  skin defenses. 
B)  immunological surveillance. 
C)  nonspecific immunity. 
D)  fever. 
E)  specific immunity. 
A)  skin defenses. 
B)  immunological surveillance. 
C)  nonspecific immunity. 
D)  fever. 
E)  specific immunity.

Question 2

During a primary immune response, the

Accepted Answer

A)  IgG titer is initially higher than the IgM titer. 
B)  IgM titer is initially higher than the IgG titer. 
C)  IgM titer and the IgG titer rise in parallel. 
A)  IgG titer is initially higher than the IgM titer. 
B)  IgM titer is initially higher than the IgG titer. 
C)  IgM titer and the IgG titer rise in parallel.

Question 3

The lymphoid system is composed of all of the following, except

Accepted Answer

A)  the spleen. 
B)  lymph. 
C)  lymphatic vessels. 
D)  the venae cavae. 
E)  lymph nodes. 
A)  the spleen. 
B)  lymph. 
C)  lymphatic vessels. 
D)  the venae cavae. 
E)  lymph nodes.

Question 4

Examples of physical barriers against pathogens include

Accepted Answer

A)  sebaceous glands. 
B)  epithelia. 
C)  mucus. 
D)  epidermal layers. 
E)  all of the above 
A)  sebaceous glands. 
B)  epithelia. 
C)  mucus. 
D)  epidermal layers. 
E)  all of the above

Question 5

Areas of the spleen that contain large aggregations of lymphocytes are known as

Accepted Answer

A)  Peyer patches. 
B)  white pulp. 
C)  adenoids. 
D)  lymph nodes. 
E)  red pulp. 
A)  Peyer patches. 
B)  white pulp. 
C)  adenoids. 
D)  lymph nodes. 
E)  red pulp.

Question 6

Immunoglobulins that are found on the surface of B cells and may activate antibody production are

Accepted Answer

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

Question 7

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

Question 8

An inflammatory response is triggered when

Accepted Answer

A)  neutrophils phagocytize bacteria. 
B)  blood flow to an area increases. 
C)  red blood cells release pyrogens. 
D)  T cells release interferon. 
E)  mast cells release histamine and heparin. 
A)  neutrophils phagocytize bacteria. 
B)  blood flow to an area increases. 
C)  red blood cells release pyrogens. 
D)  T cells release interferon. 
E)  mast cells release histamine and heparin.

Question 9

Which of these is not a property of an IgG heavy chain?

Accepted Answer

A)  binds one light chain 
B)  has one variable segment 
C)  binds antigen at both ends 
D)  has one constant segment 
E)  binds complement in the constant region 
A)  binds one light chain 
B)  has one variable segment 
C)  binds antigen at both ends 
D)  has one constant segment 
E)  binds complement in the constant region

Question 10

_________are connective tissues dominated by lymphocytes

Accepted Answer

The answer of _________are connective tissues dominated by lymphocytes...

Question 11

Stem cells that can form all types of lymphocytes are concentrated in the

Accepted Answer

A)  circulation. 
B)  spleen. 
C)  thymus. 
D)  red marrow. 
E)  yellow marrow. 
A)  circulation. 
B)  spleen. 
C)  thymus. 
D)  red marrow. 
E)  yellow marrow.

Question 12

The movement of phagocytes through the capillary wall is called_______

Accepted Answer

The answer of The movement of phagocytes through the capillary...

Question 13

The cells directly responsible for cellular immunity are the ______cells.

Accepted Answer

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

Question 14

Compared to blood capillaries, lymph capillaries exhibit all of the following, except that they

Accepted Answer

A)  are larger in diameter. 
B)  are smaller in diameter. 
C)  are frequently irregular in shape. 
D)  have no basement membrane. 
E)  have walls of endothelial cells that overlap like shingles. 
A)  are larger in diameter. 
B)  are smaller in diameter. 
C)  are frequently irregular in shape. 
D)  have no basement membrane. 
E)  have walls of endothelial cells that overlap like shingles.

Question 15

The alternative pathway of complement activation is sometimes called the_________pathway.

Accepted Answer

The answer of The alternative pathway of complement activation is...

Question 16

Histamine increases blood flow and vascular permeability. This would account for all of the following changes that occur during inflammation, except

Accepted Answer

A)  swelling of the inflamed tissue. 
B)  redness of the inflamed tissue. 
C)  chemotaxis of phagocytes. 
D)  heat of the inflamed tissue. 
E)  movement of defense proteins and cells into the interstitial space. 
A)  swelling of the inflamed tissue. 
B)  redness of the inflamed tissue. 
C)  chemotaxis of phagocytes. 
D)  heat of the inflamed tissue. 
E)  movement of defense proteins and cells into the interstitial space.

Question 17

_________are antibodies that make it easier for phagocytes to engulf their target cells.

Accepted Answer

The answer of _________are antibodies that make it easier for...

Question 18

__________are free phagocytes found in the air sacs of the lungs

Accepted Answer

Alveolar m

Question 19

The merging of _______ forms the right lymphatic duct.

Accepted Answer

A)  the right jugular, right subclavian, and right bronchomediastinal trunks 
B)  superior and inferior lymphatic ducts 
C)  two great vessels 
D)  the left jugular, right subclavian, and right bronchomediastinal trunks 
E)  the thoracic and mediastinal ducts 
A)  the right jugular, right subclavian, and right bronchomediastinal trunks 
B)  superior and inferior lymphatic ducts 
C)  two great vessels 
D)  the left jugular, right subclavian, and right bronchomediastinal trunks 
E)  the thoracic and mediastinal ducts

Question 20

Figure 20- 1 The Structure of a Lymph Node
Use Figure 20- 1 to answer the following questions:
-The white pulp of the spleen is populated by

Accepted Answer

A)  fibrous connective tissue. 
B)  veins. 
C)  arteries. 
D)  trabeculae. 
E)  lymphocytes. 
A)  fibrous connective tissue. 
B)  veins. 
C)  arteries. 
D)  trabeculae. 
E)  lymphocytes.

Exam 20: The Lymphoid System and Immunity

Defense of the body against a particular pathogen is provided by

During a primary immune response, the

The lymphoid system is composed of all of the following, except

Examples of physical barriers against pathogens include

Areas of the spleen that contain large aggregations of lymphocytes are known as

Immunoglobulins that are found on the surface of B cells and may activate antibody production are

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

An inflammatory response is triggered when

Which of these is not a property of an IgG heavy chain?

_________are connective tissues dominated by lymphocytes

Stem cells that can form all types of lymphocytes are concentrated in the

The movement of phagocytes through the capillary wall is called_______

The cells directly responsible for cellular immunity are the ______cells.

Compared to blood capillaries, lymph capillaries exhibit all of the following, except that they

The alternative pathway of complement activation is sometimes called the_________pathway.

Histamine increases blood flow and vascular permeability. This would account for all of the following changes that occur during inflammation, except

_________are antibodies that make it easier for phagocytes to engulf their target cells.

__________are free phagocytes found in the air sacs of the lungs

The merging of _______ forms the right lymphatic duct.

Figure 20- 1 The Structure of a Lymph Node Use Figure 20- 1 to answer the following questions: -The white pulp of the spleen is populated by

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Osseous Tissue and Bone Structure

The Skeleton

Articulations

Muscle Tissue

The Muscular System

Neural Tissue

The Spinal Cord, Spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Neural Integration

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels and Circulation

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

Fluid, Electrolyte, and Acid-Base Balance

The Reproductive System

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