Question 1

Lymphatic tissue contains an interlaced network of reticular fibers that functions to

Accepted Answer

A) produce lymphocytes. 
B) produce capsules around lymph nodes. 
C) attack microorganisms. 
D) line the walls of lymphatic vessels. 
E) trap microorganisms. 
A) produce lymphocytes. 
B) produce capsules around lymph nodes. 
C) attack microorganisms. 
D) line the walls of lymphatic vessels. 
E) trap microorganisms.

Question 2

Which of the following is NOT a secondary lymphatic organ?

Accepted Answer

A) spleen 
B) lymph node 
C) lymphatic nodule 
D) thymus gland 
A) spleen 
B) lymph node 
C) lymphatic nodule 
D) thymus gland

Question 3

Positive selection of lymphocytes refers to the

Accepted Answer

A) processing of an antigen by a macrophage. 
B) proliferation of natural killer cells. 
C) production of antigen-specific antibodies. 
D) survival of pre-B and pre-T cells that are capable of an immune response. 
E) replication of memory cells. 
A) processing of an antigen by a macrophage. 
B) proliferation of natural killer cells. 
C) production of antigen-specific antibodies. 
D) survival of pre-B and pre-T cells that are capable of an immune response. 
E) replication of memory cells.

Question 4

The process of eliminating those lymphocytes that react or respond against self-antigens is called

Accepted Answer

A) phagocytosis. 
B) inflammation. 
C) negative selection. 
D) activation of complement. 
E) natural selection. 
A) phagocytosis. 
B) inflammation. 
C) negative selection. 
D) activation of complement. 
E) natural selection.

Question 5

______ determines which B-cell is cloned in an antibody-mediated response.

Accepted Answer

A) The antibody 
B) The antigen 
C) A macrophage 
D) Complement 
E) A neutrophil 
A) The antibody 
B) The antigen 
C) A macrophage 
D) Complement 
E) A neutrophil

Question 6

Once cytotoxic T cells are produced,which of the following is (are)consistent with their ability to attack intracellular viruses?

Accepted Answer

A) Most nucleated cells process antigens through the MHC class I mechanisms. 
B) Viral antigens are processed by the MHC class I mechanism and are presented to the cell surface. 
C) Cytotoxic T cells bind to MHC class I processed antigens. 
D) Cytotoxic T cells bound to the MHC class I processed antigens release lymphokines. 
E) All of these choices are correct. 
A) Most nucleated cells process antigens through the MHC class I mechanisms. 
B) Viral antigens are processed by the MHC class I mechanism and are presented to the cell surface. 
C) Cytotoxic T cells bind to MHC class I processed antigens. 
D) Cytotoxic T cells bound to the MHC class I processed antigens release lymphokines. 
E) All of these choices are correct.

Question 7

Several days after an initial contact with an antigen,antibody blood levels increases.This is a

Accepted Answer

A) primer response. 
B) primary response. 
C) precipitating response. 
D) principle response. 
E) cascade response. 
A) primer response. 
B) primary response. 
C) precipitating response. 
D) principle response. 
E) cascade response.

Question 8

Cells that process antigen and present antigens to other immune cells are called

Accepted Answer

A) plasma cells. 
B) antigen-presenting cells. 
C) B receptor cells. 
D) T suppressor cells. 
E) antibodies. 
A) plasma cells. 
B) antigen-presenting cells. 
C) B receptor cells. 
D) T suppressor cells. 
E) antibodies.

Question 9

MHC class II molecules are found on

Accepted Answer

A) neutrophils,monocytes,and macrophages. 
B) dendritic cells,B cells,and helper T cells. 
C) monocytes,helper T cells,and neutrophils. 
D) B cells,macrophages,and dendritic cells. 
E) B cells,C cells and D cells. 
A) neutrophils,monocytes,and macrophages. 
B) dendritic cells,B cells,and helper T cells. 
C) monocytes,helper T cells,and neutrophils. 
D) B cells,macrophages,and dendritic cells. 
E) B cells,C cells and D cells.

Question 10

Match the appropriate characteristic with the type of immunity.
-cells mature in thymus gland

Accepted Answer

A) innate immunity 
B) antibody-mediated immunity 
C) cell-mediated immunity 
D) both antibody and cell-mediated immunity 
E) innate immunity,antibody-mediated immunity and cell-mediated immunity 
A) innate immunity 
B) antibody-mediated immunity 
C) cell-mediated immunity 
D) both antibody and cell-mediated immunity 
E) innate immunity,antibody-mediated immunity and cell-mediated immunity

Question 11

Cell-mediated immunity would be least effective against

Accepted Answer

A) tumor cells. 
B) virally infected cells. 
C) intracellular bacteria. 
D) extracellular antigens. 
E) intracellular parasites. 
A) tumor cells. 
B) virally infected cells. 
C) intracellular bacteria. 
D) extracellular antigens. 
E) intracellular parasites.

Question 12

Which of the following statements concerning neutrophils and macrophages is false?

Accepted Answer

A) They both exhibit chemotaxis. 
B) They both move by amoeboid motion. 
C) Both are capable of phagocytosis. 
D) Both release histamine when activated. 
E) Both can squeeze between cells. 
A) They both exhibit chemotaxis. 
B) They both move by amoeboid motion. 
C) Both are capable of phagocytosis. 
D) Both release histamine when activated. 
E) Both can squeeze between cells.

Question 13

The white pulp of the spleen

Accepted Answer

A) contains lymphocytes that can stimulate an immune response. 
B) filters lymph as it flows through the spleen. 
C) destroys defective red blood cells. 
D) stimulates immune responses,filter lymph,and destroys defective red blood cells. 
A) contains lymphocytes that can stimulate an immune response. 
B) filters lymph as it flows through the spleen. 
C) destroys defective red blood cells. 
D) stimulates immune responses,filter lymph,and destroys defective red blood cells.

Question 14

The key signs of inflammation include all of the following EXCEPT

Accepted Answer

A) jaundice. 
B) pain. 
C) swelling. 
D) redness. 
E) heat. 
A) jaundice. 
B) pain. 
C) swelling. 
D) redness. 
E) heat.

Question 15

In immunodeficiency diseases,

Accepted Answer

A) the immune system fails to distinguish between self-antigens and foreign antigens. 
B) inadequate B and/or T cell formation may occur. 
C) IgE mediates a localized reaction. 
D) serum sickness results. 
E) immune surveillance occurs. 
A) the immune system fails to distinguish between self-antigens and foreign antigens. 
B) inadequate B and/or T cell formation may occur. 
C) IgE mediates a localized reaction. 
D) serum sickness results. 
E) immune surveillance occurs.

Question 16

Match the type of cell with its function.
-monocyte

Accepted Answer

A) first cell to enter infected tissue 
B) will become macrophage in tissue 
C) lyses tumor and virus-infected cells 
D) cell that increases in number during a parasitic infection 
E) nonmotile cells in connective tissue that promote inflammation
, 
A) first cell to enter infected tissue 
B) will become macrophage in tissue 
C) lyses tumor and virus-infected cells 
D) cell that increases in number during a parasitic infection 
E) nonmotile cells in connective tissue that promote inflammation
,

Question 17

Match the term with the appropriate description.
-germinal centers

Accepted Answer

A) lipids that cause smooth muscle relaxation and vasodilation 
B) lymph nodules aggregated in the small intestinal wall 
C) rounded epithelial structures found in the medulla of thymus 
D) areas of a lymph node where lymphocytes divide 
E) a chemical released from mast cells that causes vasodilation 
A) lipids that cause smooth muscle relaxation and vasodilation 
B) lymph nodules aggregated in the small intestinal wall 
C) rounded epithelial structures found in the medulla of thymus 
D) areas of a lymph node where lymphocytes divide 
E) a chemical released from mast cells that causes vasodilation

Question 18

Match the appropriate characteristic with the type of immunity.
-origin of cells is red bone marrow

Accepted Answer

A) innate immunity 
B) antibody-mediated immunity 
C) cell-mediated immunity 
D) both antibody and cell-mediated immunity 
E) innate immunity,antibody-mediated immunity and cell-mediated immunity 
A) innate immunity 
B) antibody-mediated immunity 
C) cell-mediated immunity 
D) both antibody and cell-mediated immunity 
E) innate immunity,antibody-mediated immunity and cell-mediated immunity

Question 19

Which of the following most accurately describes how foreign substances can activate complement?

Accepted Answer

A) Antibodies can bind to foreign antigens and activate complement through the classical pathway. 
B) Foreign substances can bind to spontaneously activated C3 and stabilize it. 
C) Foreign proteins bind to C1 and activate it. 
D) Foreign proteins are phagocytized by macrophages and directly activate complement. 
E) Antibodies can bind to foreign antigens and activate complement through the classical pathway and foreign substances can bind to spontaneously activated C3 and stabilize it. 
A) Antibodies can bind to foreign antigens and activate complement through the classical pathway. 
B) Foreign substances can bind to spontaneously activated C3 and stabilize it. 
C) Foreign proteins bind to C1 and activate it. 
D) Foreign proteins are phagocytized by macrophages and directly activate complement. 
E) Antibodies can bind to foreign antigens and activate complement through the classical pathway and foreign substances can bind to spontaneously activated C3 and stabilize it.

Question 20

Which of the following is NOT a function of the lymphatic system?

Accepted Answer

A) Defending from infection caused by microorganisms and other foreign substances. 
B) Aiding in erythropoiesis of red blood cells. 
C) Maintaining fluid balance by returning excess interstitial fluid to the blood. 
D) Absorbing and transporting lipids from the digestive tract. 
A) Defending from infection caused by microorganisms and other foreign substances. 
B) Aiding in erythropoiesis of red blood cells. 
C) Maintaining fluid balance by returning excess interstitial fluid to the blood. 
D) Absorbing and transporting lipids from the digestive tract.

Exam 22: Lymphatic System and Immunity

Lymphatic tissue contains an interlaced network of reticular fibers that functions to

Which of the following is NOT a secondary lymphatic organ?

Positive selection of lymphocytes refers to the

The process of eliminating those lymphocytes that react or respond against self-antigens is called

______ determines which B-cell is cloned in an antibody-mediated response.

Once cytotoxic T cells are produced,which of the following is (are)consistent with their ability to attack intracellular viruses?

Several days after an initial contact with an antigen,antibody blood levels increases.This is a

Cells that process antigen and present antigens to other immune cells are called

MHC class II molecules are found on

Match the appropriate characteristic with the type of immunity. -cells mature in thymus gland

Cell-mediated immunity would be least effective against

Which of the following statements concerning neutrophils and macrophages is false?

The white pulp of the spleen

The key signs of inflammation include all of the following EXCEPT

In immunodeficiency diseases,

Match the type of cell with its function. -monocyte

Match the term with the appropriate description. -germinal centers

Match the appropriate characteristic with the type of immunity. -origin of cells is red bone marrow

Which of the following most accurately describes how foreign substances can activate complement?

Which of the following is NOT a function of the lymphatic system?

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Integration of Nervous System Functions

The Special Senses

Autonomic Nervous System

Functional Organization of the Endocrine System

Endocrine Glands

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Cardiovascular System: the Heart

Cardiovascular System: Blood Vessels and Circulation

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Water,electrolyte,and Acid-Based Balance

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