Question 1

Antigens that trigger allergic reactions are called________

Accepted Answer

The answer of Antigens that trigger allergic reactions are called________...

Question 2

Figure 20- 1 The Structure of a Lymph Node
Use Figure 20- 1 to answer the following questions:
-Identify the structure labeled "6."

Accepted Answer

A)  inner cortex 
B)  outer cortex 
C)  medulla 
D)  cortical sinus 
E)  trabeculae 
A)  inner cortex 
B)  outer cortex 
C)  medulla 
D)  cortical sinus 
E)  trabeculae

Question 3

Lymphocytes are produced and stored in all of the following, except

Accepted Answer

A)  the thymus. 
B)  the brain. 
C)  lymph node organs. 
D)  lymphoid nodules. 
E)  the spleen. 
A)  the thymus. 
B)  the brain. 
C)  lymph node organs. 
D)  lymphoid nodules. 
E)  the spleen.

Question 4

The thoracic duct drains lymph from all of the following regions, except the

Accepted Answer

A)  left side of neck. 
B)  pelvic viscera. 
C)  right breast. 
D)  left breast. 
E)  left arm and shoulder. 
A)  left side of neck. 
B)  pelvic viscera. 
C)  right breast. 
D)  left breast. 
E)  left arm and shoulder.

Question 5

A crime scene investigator found that a biological fluid sample contains a large amount of IgA- type antibody. This fluid is probably

Accepted Answer

A)  blood. 
B)  serum. 
C)  tears. 
D)  lymph. 
E)  interstitial. 
A)  blood. 
B)  serum. 
C)  tears. 
D)  lymph. 
E)  interstitial.

Question 6

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

Accepted Answer

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

Question 7

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

Accepted Answer

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

Question 8

Lymph nodes do all of the following, except that they

Accepted Answer

A)  monitor the contents of lymph. 
B)  accumulate cancer cells. 
C)  remove excess nutrients from the lymph. 
D)  remove debris and pathogens from the lymph. 
E)  produce antibodies. 
A)  monitor the contents of lymph. 
B)  accumulate cancer cells. 
C)  remove excess nutrients from the lymph. 
D)  remove debris and pathogens from the lymph. 
E)  produce antibodies.

Question 9

The phagocytic antigen- presenting cells belong to the ____________group

Accepted Answer

monocyte-

Question 10

The binding of an antigen to an antibody can result in

Accepted Answer

A)  complement activation and opsonization. 
B)  neutralization of the antigen. 
C)  agglutination or precipitation. 
D)  all of the above 
E)  A and B only 
A)  complement activation and opsonization. 
B)  neutralization of the antigen. 
C)  agglutination or precipitation. 
D)  all of the above 
E)  A and B only

Question 11

Which of the following interleukins stimulates T cells to produce IL- 2, promotes inflammation, and causes fever?

Accepted Answer

A)  IL- 8 
B)  IL- 3 
C)  IL- 4 
D)  IL- 1 
E)  both A and D 
A)  IL- 8 
B)  IL- 3 
C)  IL- 4 
D)  IL- 1 
E)  both A and D

Question 12

The effects of activating the complement system include all of the following, except

Accepted Answer

A)  stimulation of inflammation. 
B)  destruction of target cell plasma membranes. 
C)  inhibition of the immune response. 
D)  chemotaxis. 
E)  opsonization. 
A)  stimulation of inflammation. 
B)  destruction of target cell plasma membranes. 
C)  inhibition of the immune response. 
D)  chemotaxis. 
E)  opsonization.

Question 13

The cells responsible for humoral immunity are the ________cells.

Accepted Answer

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

Question 14

The classic pathway of complement activation begins when the protein C1 binds to

Accepted Answer

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

Question 15

Nonspecific defenses include

Accepted Answer

A)  phagocytic cells. 
B)  inflammation. 
C)  physical barriers. 
D)  interferons. 
E)  all of the above 
A)  phagocytic cells. 
B)  inflammation. 
C)  physical barriers. 
D)  interferons. 
E)  all of the above

Question 16

The only antibodies that normally cross the placenta are

Accepted Answer

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

Question 17

The cell that dominates the deep cortical region of a lymph node is the _______cell.

Accepted Answer

A)  NK 
B)  B 
C)  T 
D)  plasma 
E)  nodule 
A)  NK 
B)  B 
C)  T 
D)  plasma 
E)  nodule

Question 18

Immunoglobulins that are primarily found in glandular secretions such as saliva and tears are

Accepted Answer

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

Question 19

Which class of leukocytes is particularly abundant in the red pulp of the spleen?

Accepted Answer

A)  T lymphocytes. 
B)  free and fixed macrophages. 
C)  neutrophils. 
D)  red blood cells. 
E)  B lymphocytes. 
A)  T lymphocytes. 
B)  free and fixed macrophages. 
C)  neutrophils. 
D)  red blood cells. 
E)  B lymphocytes.

Question 20

Stem cells that will form B cells or NK cells are found only in the

Accepted Answer

A)  spleen. 
B)  liver. 
C)  bone marrow. 
D)  thymus. 
E)  kidneys. 
A)  spleen. 
B)  liver. 
C)  bone marrow. 
D)  thymus. 
E)  kidneys.

Exam 20: The Lymphoid System and Immunity

Antigens that trigger allergic reactions are called________

Figure 20- 1 The Structure of a Lymph Node Use Figure 20- 1 to answer the following questions: -Identify the structure labeled "6."

Lymphocytes are produced and stored in all of the following, except

The thoracic duct drains lymph from all of the following regions, except the

A crime scene investigator found that a biological fluid sample contains a large amount of IgA- type antibody. This fluid is probably

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

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

Lymph nodes do all of the following, except that they

The phagocytic antigen- presenting cells belong to the ____________group

The binding of an antigen to an antibody can result in

Which of the following interleukins stimulates T cells to produce IL- 2, promotes inflammation, and causes fever?

The effects of activating the complement system include all of the following, except

The cells responsible for humoral immunity are the ________cells.

The classic pathway of complement activation begins when the protein C1 binds to

Nonspecific defenses include

The only antibodies that normally cross the placenta are

The cell that dominates the deep cortical region of a lymph node is the _______cell.

Immunoglobulins that are primarily found in glandular secretions such as saliva and tears are

Which class of leukocytes is particularly abundant in the red pulp of the spleen?

Stem cells that will form B cells or NK cells are found only in the

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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