Question 1

Red bone marrow is the point of origin of all immune cells of the lymphatic system.

Accepted Answer

A) True 
 B)False

Question 2

The immune system spans nearly every organ and tissue in the human body.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following forces does not help lymph to flow?

Accepted Answer

A)   Rhythmic contractions of lymphatic vessels
B)   The thoracic pump
C)   The skeletal muscle pump
D)   The lymphatic node pump
E)   Arterial pulsations squeezing lymphatic vesselsF) All of the above
G) A) and B)

Question 4

Which is the correct sequence of events in the humoral immune response?

Accepted Answer

A)   Antigen recognition → antigen presentation → differentiation → clonal selection → attack
B)   Antigen recognition → antigen presentation → clonal selection → differentiation → attack
C)   Antigen presentation → antigen recognition → clonal selection → differentiation → attack
D)   Antigen presentation → antigen recognition → clonal selection → attack differentiation
E)   Antigen recognition → differentiation → antigen presentation → clonal selection → attackF) A) and B)
G) C) and D)

Question 5

The antigenicity of a molecule is due to specific regions of it called haptens.

Accepted Answer

A) True 
 B)False

Question 6

Interleukins are chemical signals by which immune cells communicate with each other.

Accepted Answer

A) True 
 B)False

Question 7

Some antibodies against foreign antigens can react to similar self-antigens,causing an autoimmune disease.

Accepted Answer

A) True 
 B)False

Question 8

Cytotoxic T cells respond only to antigens bound to MHC-I proteins.

Accepted Answer

A) True 
 B)False

Question 9

Cellular immunity uses MHC-I and MHC-II,but humoral immunity uses only MHC-II.

Accepted Answer

A) True 
 B)False

Question 10

Naive T cells can synthesize antibodies.

Accepted Answer

A) True 
 B)False

Question 11

Immune surveillance is a process in which __________ nonspecifically detect and destroy foreign cells and diseased host cells.

Accepted Answer

A)   T lymphocytes (T cells) 
B)   reticular cells
C)   dendritic cells
D)   macrophages
E)   natural killer (NK) cellsF) A) and D)
G) B) and E)

Question 12

Interferons are secreted in response to bacterial infections.

Accepted Answer

A) True 
 B)False

Question 13

The __________ show(s) a remarkable degree of degeneration (involution) with age.

Accepted Answer

A)   lymph nodes
B)   thymus
C)   spleen
D)   pharyngeal tonsils
E)   appendixF) A) and B)
G) C) and D)

Question 14

Removal of the __________ would be more harmful to a one-year-old child than an adult.

Accepted Answer

A)   spleen
B)   lymph node
C)   thymus
D)   appendix
E)   palatine tonsilF) A) and E)
G) B) and C)

Question 15

Pus is made of dead neutrophils,macrophages,and other tissue debris from a damaged tissue.

Accepted Answer

A) True 
 B)False

Question 16

The only lymphatic organ(s) with afferent lymphatic vessels is(are) the __________.

Accepted Answer

A)   lymph nodes
B)   thymus
C)   spleen
D)   red bone marrow
E)   tonsilsF) A) and E)
G) A) and B)

Question 17

T cells undergo positive selection in the thymus,which means they __________.

Accepted Answer

A)   react against self antigens
B)   develop surface antigen receptors
C)   remain alive but unresponsive
D)   die and macrophages phagocytize them
E)   multiply and form clones of identical T cellsF) A) and D)
G) D) and E)

Question 18

The lymphatic system is involved in circulation,immunity,and nutrient absorption.

Accepted Answer

A) True 
 B)False

Question 19

Helper T (TH) cells do not __________.

Accepted Answer

A)   secrete cytokines that stimulate clonal selection of B cells
B)   secrete cytokines that stimulate clonal selection of cytotoxic T cells
C)   secrete cytokines that stimulate macrophage activity
D)   secrete inflammatory chemicals
E)   secrete fever-producing chemicalsF) D) and E)
G) A) and E)

Question 20

__________ is not a cardinal sign characteristic of inflammation.

Accepted Answer

A)   Impaired use
B)   Redness
C)   Pain
D)   Heat
E)   SwellingF) A) and E)
G) All of the above

Exam 21: The Lymphatic and Immune Systems

T cells undergo positive selection in the thymus,which means they __________.

Correct AnswerverifiedShow Answer

Naive T cells can synthesize antibodies.

Correct AnswerverifiedShow Answer

Cytotoxic T cells respond only to antigens bound to MHC-I proteins.

Correct AnswerverifiedShow Answer

Which of the following forces does not help lymph to flow?

Correct AnswerverifiedShow Answer

The immune system spans nearly every organ and tissue in the human body.

Correct AnswerverifiedShow Answer

Some antibodies against foreign antigens can react to similar self-antigens,causing an autoimmune disease.

Correct AnswerverifiedShow Answer

The only lymphatic organ(s) with afferent lymphatic vessels is(are) the __________.

Correct AnswerverifiedShow Answer

Interferons are secreted in response to bacterial infections.

Correct AnswerverifiedShow Answer

__________ is not a cardinal sign characteristic of inflammation.

Correct AnswerverifiedShow Answer

The antigenicity of a molecule is due to specific regions of it called haptens.

Correct AnswerverifiedShow Answer

Helper T (TH) cells do not __________.

Correct AnswerverifiedShow Answer

The lymphatic system is involved in circulation,immunity,and nutrient absorption.

Correct AnswerverifiedShow Answer

Removal of the __________ would be more harmful to a one-year-old child than an adult.

Correct AnswerverifiedShow Answer

Pus is made of dead neutrophils,macrophages,and other tissue debris from a damaged tissue.

Correct AnswerverifiedShow Answer

Cellular immunity uses MHC-I and MHC-II,but humoral immunity uses only MHC-II.

Correct AnswerverifiedShow Answer

Which is the correct sequence of events in the humoral immune response?

Correct AnswerverifiedShow Answer

Red bone marrow is the point of origin of all immune cells of the lymphatic system.

Correct AnswerverifiedShow Answer

The __________ show(s) a remarkable degree of degeneration (involution) with age.

Correct AnswerverifiedShow Answer

Interleukins are chemical signals by which immune cells communicate with each other.

Correct AnswerverifiedShow Answer

Immune surveillance is a process in which __________ nonspecifically detect and destroy foreign cells and diseased host cells.

Correct AnswerverifiedShow Answer

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Helper T (T_H) cells do not __________.

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