Question 1

Explain lymphedema.

Accepted Answer

A) Lymphedema is the accumulation of lymphocytes in lymphatic vessels during an active infection. 
B) Lymphedema is the activation of the lymphatic system during an active infection. 
C) Lymphedema is the dilation of lymphatic vessels that occurs in response to inflammation. 
D) Lymphedema is the invasion of red blood cells into leaky lymphatic vessels. 
E) Lymphedema is the accumulation of interstitial fluids that results from blocked lymphatic drainage. 
A) Lymphedema is the accumulation of lymphocytes in lymphatic vessels during an active infection. 
B) Lymphedema is the activation of the lymphatic system during an active infection. 
C) Lymphedema is the dilation of lymphatic vessels that occurs in response to inflammation. 
D) Lymphedema is the invasion of red blood cells into leaky lymphatic vessels. 
E) Lymphedema is the accumulation of interstitial fluids that results from blocked lymphatic drainage.

Question 2

Describe hypersensitivities.

Accepted Answer

A) Hypersensitivities are normal immune responses to an allergen,which is an antigen that triggers an allergic reaction. 
B) Hypersensitivities are excessive immune responses to an allergen,which is an antigen that triggers an allergic reaction. 
C) Hypersensitivities is a condition that results from the production of antibodies directed against normal antigens in the body. 
D) Hypersensitivities are inadequate immune responses due to problems with embryonic development of lymphoid organs and tissues,a viral infection,or treatment with or exposure to immunosuppressive agents. 
E) Hypersensitivities are the excessive immune reaction of antibodies to a virus-infected cell. 
A) Hypersensitivities are normal immune responses to an allergen,which is an antigen that triggers an allergic reaction. 
B) Hypersensitivities are excessive immune responses to an allergen,which is an antigen that triggers an allergic reaction. 
C) Hypersensitivities is a condition that results from the production of antibodies directed against normal antigens in the body. 
D) Hypersensitivities are inadequate immune responses due to problems with embryonic development of lymphoid organs and tissues,a viral infection,or treatment with or exposure to immunosuppressive agents. 
E) Hypersensitivities are the excessive immune reaction of antibodies to a virus-infected cell.

Question 3

What are the functions of the spleen?

Accepted Answer

Functions of the spleen include (1)remov

Question 4

Name the lymphoid tissue that protects epithelia lining the digestive,respiratory,urinary,and reproductive tracts.

Accepted Answer

A) lymph nodes 
B) tonsils 
C) mucosa-associated lymphoid tissue 
D) interferons 
E) lacteals 
A) lymph nodes 
B) tonsils 
C) mucosa-associated lymphoid tissue 
D) interferons 
E) lacteals

Question 5

________ cells provide cell-mediated immunity.

Accepted Answer

A) Memory B 
B) Cytotoxic T 
C) Suppressor T 
D) Helper T 
E) CD8 T 
A) Memory B 
B) Cytotoxic T 
C) Suppressor T 
D) Helper T 
E) CD8 T

Question 6

Figure 20-1
-Identify the structure labeled "1."

Accepted Answer

A) venule 
B) lymphatic nodule 
C) trabecula 
D) afferent lymphatic 
E) efferent lymphatic 
A) venule 
B) lymphatic nodule 
C) trabecula 
D) afferent lymphatic 
E) efferent lymphatic

Question 7

List the ways that antigen-antibody complexes can destroy target antigens.

Accepted Answer

Antigen-antibody complexes help destroy

Question 8

A rise in the level of interferons in the body suggests what kind of infection?

Accepted Answer

A) cancer 
B) parasitic 
C) bacterial 
D) viral 
E) prion 
A) cancer 
B) parasitic 
C) bacterial 
D) viral 
E) prion

Question 9

Lymph nodes do all of the following except

Accepted Answer

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

Question 10

Which T cells contain CD8 markers? CD4 markers?

Accepted Answer

A) CD8 markers are found on cytotoxic T cells,memory T cells,and regulatory T cells; CD4 markers are found on all helper T cells. 
B) CD8 markers are found on all helper T cells; CD4 markers are found on cytotoxic T cells,memory T cells,and regulatory T cells. 
C) CD8 markers are found on cytotoxic T cells and memory T cells; CD4 markers are found on regulatory T cells and helper T cells. 
D) CD8 markers are found on regulatory T cells and helper T cells; CD4 markers are found on cytotoxic T cells and memory cells. 
E) CD8 markers are found on regulatory T cells; CD4 markers are found on cytotoxic T cells,helper T cells,and memory T cells. 
A) CD8 markers are found on cytotoxic T cells,memory T cells,and regulatory T cells; CD4 markers are found on all helper T cells. 
B) CD8 markers are found on all helper T cells; CD4 markers are found on cytotoxic T cells,memory T cells,and regulatory T cells. 
C) CD8 markers are found on cytotoxic T cells and memory T cells; CD4 markers are found on regulatory T cells and helper T cells. 
D) CD8 markers are found on regulatory T cells and helper T cells; CD4 markers are found on cytotoxic T cells and memory cells. 
E) CD8 markers are found on regulatory T cells; CD4 markers are found on cytotoxic T cells,helper T cells,and memory T cells.

Question 11

Which cells are involved in inflammation?

Accepted Answer

A) B cells and T cells 
B) natural killer cells and eosinophils 
C) eosinophils,neutrophils,and macrophages 
D) basophils and mast cells 
E) helper T cells and memory T cells 
A) B cells and T cells 
B) natural killer cells and eosinophils 
C) eosinophils,neutrophils,and macrophages 
D) basophils and mast cells 
E) helper T cells and memory T cells

Question 12

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

Accepted Answer

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

Question 13

Plasma contains ________ proteins that form the complement system.

Accepted Answer

A) 1-3 
B) 5 
C) fewer than 10 
D) 18-25 
E) more than 30 
A) 1-3 
B) 5 
C) fewer than 10 
D) 18-25 
E) more than 30

Question 14

Lymphocytes are produced and stored in all of the following except

Accepted Answer

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

Question 15

Define immune surveillance.

Accepted Answer

A) Immune surveillance the normal filtering of lymph through lymph nodes to detect abnormal cells. 
B) Immune surveillance is the constant filtering of blood in the kidneys to detect abnormal cells. 
C) Immune surveillance is the constant circulation of available antibodies to attack pathogens. 
D) Immune surveillance is the constant monitoring of normal tissues by NK cells sensitive to abnormal antigens on the surfaces of cells. 
E) Immune surveillance is the constant monitoring of normal tissues by activated cytotoxic T cells. 
A) Immune surveillance the normal filtering of lymph through lymph nodes to detect abnormal cells. 
B) Immune surveillance is the constant filtering of blood in the kidneys to detect abnormal cells. 
C) Immune surveillance is the constant circulation of available antibodies to attack pathogens. 
D) Immune surveillance is the constant monitoring of normal tissues by NK cells sensitive to abnormal antigens on the surfaces of cells. 
E) Immune surveillance is the constant monitoring of normal tissues by activated cytotoxic T cells.

Question 16

Helper T cells do all of the following except

Accepted Answer

A) activate sensitized B cells by costimulation. 
B) destroy target cells using perforins. 
C) enhance cell-mediated immunity. 
D) secrete cytokines to stimulate production of plasma cells. 
E) enhance antibody-mediated immunity. 
A) activate sensitized B cells by costimulation. 
B) destroy target cells using perforins. 
C) enhance cell-mediated immunity. 
D) secrete cytokines to stimulate production of plasma cells. 
E) enhance antibody-mediated immunity.

Question 17

Figure 20-1
-Identify the structures labeled "4."

Accepted Answer

A) lymphatic vessels 
B) medullae 
C) trabeculae 
D) dendritic cells 
E) venules 
A) lymphatic vessels 
B) medullae 
C) trabeculae 
D) dendritic cells 
E) venules

Question 18

Infection with the HIV virus occurs through

Accepted Answer

A) sharing eating utensils. 
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. 
A) sharing eating utensils. 
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 19

What structure prevents the backflow of lymph in some lymphatic vessels?

Accepted Answer

A) lacteals 
B) lymph nodes 
C) valves 
D) tight junctions 
E) desmosomes 
A) lacteals 
B) lymph nodes 
C) valves 
D) tight junctions 
E) desmosomes

Question 20

Lymphocytes that destroy foreign cells or virus-infected cells are ________ 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

Exam 20: The Lymphatic System and Immunity

Explain lymphedema.

Describe hypersensitivities.

What are the functions of the spleen?

Name the lymphoid tissue that protects epithelia lining the digestive,respiratory,urinary,and reproductive tracts.

________ cells provide cell-mediated immunity.

Figure 20-1 -Identify the structure labeled "1."

List the ways that antigen-antibody complexes can destroy target antigens.

A rise in the level of interferons in the body suggests what kind of infection?

Lymph nodes do all of the following except

Which T cells contain CD8 markers? CD4 markers?

Which cells are involved in inflammation?

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

Plasma contains ________ proteins that form the complement system.

Lymphocytes are produced and stored in all of the following except

Define immune surveillance.

Helper T cells do all of the following except

Figure 20-1 -Identify the structures labeled "4."

Infection with the HIV virus occurs through

What structure prevents the backflow of lymph in some lymphatic vessels?

Lymphocytes that destroy foreign cells or virus-infected cells are ________ cells.

An Introduction to Anatomy and Physiology

Chemical Level of Organization

Cellular Level of Organization

Tissue Level of Organization

The Integumentary System

Bones and Bone Structure

The Skeleton

Joints

Skeletal Muscle Tissue

The Muscular System

Nervous Tissue

The Spinal Cord, spinal Nerves, and Spinal Reflexes

The Brain, cranial Nerves, and Sensory and Motor Pathways

The Autonomic Nervous System

The Special Senses

The Endocrine System

Blood

The Heart and Cardiovascular Function

Blood Vessels and Circulation

The Respiratory System

The Digestive System

Metabolism, nutrition, and Energetics

The Urinary System

Fluid,electrolyte,and Acid-Base Balance

The Reproductive System

Development and Inheritance

Filters