Question 1

__________ develop when the immune response mistakenly targets normal body cells and tissues.

Accepted Answer

Autoimmune

Question 2

Lymphatic vessels commonly occur in association with

Accepted Answer

A)  sensory nerve endings. 
B)  adipose tissue. 
C)  hyaline cartilage. 
D)  blood vessels. 
E)  both A and C 
A)  sensory nerve endings. 
B)  adipose tissue. 
C)  hyaline cartilage. 
D)  blood vessels. 
E)  both A and C

Question 3

In an experiment, Roger injects mice with interleukin- 2 IL- 2). After 3 days he examines the blood and lymph for changes. What would you expect to observe following this treatment?

Accepted Answer

A)  decreased number of T cells 
B)  increased number of T cells 
C)  increased number of mast cells 
D)  decreased number of B cells 
E)  both A and D 
A)  decreased number of T cells 
B)  increased number of T cells 
C)  increased number of mast cells 
D)  decreased number of B cells 
E)  both A and D

Question 4

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

Accepted Answer

A)  afferent lymphatic vessel 
B)  efferent lymphatic vessel 
C)  arteriole 
D)  venule 
E)  lymphoid nodule 
A)  afferent lymphatic vessel 
B)  efferent lymphatic vessel 
C)  arteriole 
D)  venule 
E)  lymphoid nodule

Question 5

_______ are fixed macrophages found in the liver

Accepted Answer

The answer of _______ are fixed macrophages found in the...

Question 6

Infection with the HIV virus occurs through

Accepted Answer

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

Question 7

________is the class of antibody first secreted in response to a new antigen.

Accepted Answer

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

Question 8

The term lymphadenopathy refers to

Accepted Answer

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

Question 9

Microglia are to_________ as Kupffer cells are to_____

Accepted Answer

The answer of Microglia are to_________ as Kupffer cells are...

Question 10

Lymphoid organs differ from lymphoid tissues in what way?

Accepted Answer

A)  They are surrounded by a fibrous capsule and lymphoid tissues are not. 
B)  They cannot produce antibodies, whereas lymphoid tissues can. 
C)  They are found in the digestive tract and lymphoid tissues are found in the thorax. 
D)  They contain T lymphocytes and lymphoid tissues do not. 
E)  both A and B 
A)  They are surrounded by a fibrous capsule and lymphoid tissues are not. 
B)  They cannot produce antibodies, whereas lymphoid tissues can. 
C)  They are found in the digestive tract and lymphoid tissues are found in the thorax. 
D)  They contain T lymphocytes and lymphoid tissues do not. 
E)  both A and B

Question 11

Lymphocytes

Accepted Answer

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

Question 12

Microphages include

Accepted Answer

A)  Kupffer cells. 
B)  monocytes. 
C)  neutrophils. 
D)  eosinophils. 
E)  both C and D 
A)  Kupffer cells. 
B)  monocytes. 
C)  neutrophils. 
D)  eosinophils. 
E)  both C and D

Question 13

The human immunodeficiency virus HIV) that causes the disease known as AIDS selectively infects_______ cells.

Accepted Answer

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

Question 14

In general, lymphocytes

Accepted Answer

A)  spend most of their time in lymphoid tissue. 
B)  have relatively long life spans. 
C)  have two nuclei. 
D)  all of the above 
E)  A and B only 
A)  spend most of their time in lymphoid tissue. 
B)  have relatively long life spans. 
C)  have two nuclei. 
D)  all of the above 
E)  A and B only

Question 15

If the thymus shrank and stopped making thymosins, we would expect to see an immediate decrease in the number of

Accepted Answer

A)  neutrophils. 
B)  T cells. 
C)  NK cells. 
D)  B lymphocytes. 
E)  both B and C 
A)  neutrophils. 
B)  T cells. 
C)  NK cells. 
D)  B lymphocytes. 
E)  both B and C

Question 16

T cells and B cells can be activated only by

Accepted Answer

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

Question 17

Which of the following statements about MHC proteins is not true?

Accepted Answer

A)  fall into two major classes 
B)  function in antigen presentation 
C)  bind complement 
D)  are found on all nucleated cells 
E)  allow the body to differentiate its own cells from foreign cells 
A)  fall into two major classes 
B)  function in antigen presentation 
C)  bind complement 
D)  are found on all nucleated cells 
E)  allow the body to differentiate its own cells from foreign cells

Question 18

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

Accepted Answer

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

Question 19

The medullary cords of a lymph node contain _______lymphocytes and plasma cells.

Accepted Answer

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

Question 20

Figure 20- 1 The Structure of a Lymph Node
Use Figure 20- 1 to answer the following questions:
-Identify the dominant cell type in the area labeled "4."

Accepted Answer

A)  T cells 
B)  erythrocytes 
C)  platelets 
D)  B cells 
E)  all of the above 
A)  T cells 
B)  erythrocytes 
C)  platelets 
D)  B cells 
E)  all of the above

Exam 20: The Lymphoid System and Immunity

__________ develop when the immune response mistakenly targets normal body cells and tissues.

Lymphatic vessels commonly occur in association with

In an experiment, Roger injects mice with interleukin- 2 IL- 2). After 3 days he examines the blood and lymph for changes. What would you expect to observe following this treatment?

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

_______ are fixed macrophages found in the liver

Infection with the HIV virus occurs through

________is the class of antibody first secreted in response to a new antigen.

The term lymphadenopathy refers to

Microglia are to_________ as Kupffer cells are to_____

Lymphoid organs differ from lymphoid tissues in what way?

Lymphocytes

Microphages include

The human immunodeficiency virus HIV) that causes the disease known as AIDS selectively infects_______ cells.

In general, lymphocytes

If the thymus shrank and stopped making thymosins, we would expect to see an immediate decrease in the number of

T cells and B cells can be activated only by

Which of the following statements about MHC proteins is not true?

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

The medullary cords of a lymph node contain _______lymphocytes and plasma cells.

Figure 20- 1 The Structure of a Lymph Node Use Figure 20- 1 to answer the following questions: -Identify the dominant cell type in the area labeled "4."

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

Filters

Microglia are to_____ as Kupffer cells are to_