Question 1

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 selectionF) A) and E)
G) B) and C)

Question 2

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 tractE) None of the above
F) B) and C)

Question 3

Which of the following is not part of the lymphatic system?

Accepted Answer

A)   Tonsils
B)   Thyroid gland
C)   Arteries
D)   KidneysE) All of the above
F) A) and B)

Question 4

Active natural immunity occurs when

Accepted Answer

A)   antibodies pass from a pregnant mother to her fetus.
B)   antibodies are injected into a host.
C)   an individual develops a disease.
D)   a person is vaccinated.
E)   antibodies are passed in breast milk.F) A) and D)
G) None of the above

Question 5

Valves in lymphatic vessels allow substances to enter the vessel but reduce the ability for the substance from exiting the vessel.

Accepted Answer

A) True 
 B)False

Question 6

A protein that helps to protect the body against viral infections is ________.

Accepted Answer

A)   complement
B)   interferon
C)   lysozyme
D)   histamine
E)   kininF) None of the above
G) A) and E)

Question 7

Germinal centers are the sites of

Accepted Answer

A)   increased blood flow to the lymph nodes.
B)   fluid production.
C)   increased flow of lymph from infected tissues.
D)   entrance of lymph into lymph nodes.
E)   proliferation of lymphocytes in the lymph nodes.F) A) and C)
G) A) and D)

Question 8

A small molecule that can cause an allergic reaction is a/an ________.

Accepted Answer

A)   T cell
B)   B cell
C)   antibody
D)   haptenE) B) and C)
F) C) and D)

Question 9

Which of the following is NOT a key sign of inflammation?

Accepted Answer

A)   Jaundice
B)   Pain
C)   Swelling
D)   Redness
E)   HeatF) A) and B)
G) A) and E)

Question 10

A molecule produced by cells of the right arm moves into a nearby lymphatic vessel. This molecule will eventually enter the bloodstream by passing through the ________ into the ________.

Accepted Answer

A)   right lymphatic trunk; right subclavian vein
B)   thoracic duct; superior vena cava
C)   thoracic duct; right subclavian vein
D)   right lymphatic trunk; superior vena cavaE) B) and D)
F) B) and C)

Question 11

Lymph exits a lymph node via the ________.

Accepted Answer

A)   efferent lymphatic vessels
B)   afferent lymphatic vessels
C)   cortical sinuses
D)   trabeculae
E)   lymphatic ductF) A) and B)
G) A) and D)

Question 12

Adaptive immunity is stimulated by ________.

Accepted Answer

A)   antigens
B)   histamines
C)   antibodies
D)   complement
E)   plasma proteinsF) C) and D)
G) A) and D)

Question 13

The lymphatic system plays a role in maintaining fluid balance within the body by

Accepted Answer

A)   adding lymph to GI tract secretions.
B)   returning interstitial fluid to the blood.
C)   transporting lymph from tissues to the liver.
D)   carrying excess fluid to the kidneys to be excreted.
E)   actively absorbing fluid from the blood.F) D) and E)
G) B) and C)

Question 14

The lymphatic system is involved in

Accepted Answer

A)   lipid absorption from the digestive tract.
B)   transporting lymph from the intestines to the liver.
C)   maintenance of pH in the tissues.
D)   production of erythrocytes.
E)   protein metabolism.F) A) and E)
G) B) and E)

Question 15

The HIV virus infects ________.

Accepted Answer

A)   B cells
B)   cytotoxic T cells
C)   suppressor T cells
D)   helper T cells
E)   monocytesF) A) and E)
G) B) and C)

Question 16

The MHC class I antigen complex displays a foreign antigen on the cell surface. This prompts the immune system to destroy

Accepted Answer

A)   B cell clones.
B)   extracellular antigens.
C)   the displaying cell.
D)   mature red blood cells.
E)   the virus inside the cell, but not the cell.F) B) and E)
G) C) and E)

Question 17

The periarterial lymphatic sheath and the lymphatic nodules are part of the red pulp of the spleen.

Accepted Answer

A) True 
 B)False

Question 18

Edema of the inguinal region results from removal of popliteal lymph nodes.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following is NOT a mechanism of complement action?

Accepted Answer

A)   Produces cytokines
B)   Opsonization
C)   Attracts other immune cells to the site of infection
D)   Forms a MAC that leads to cell lysisE) B) and C)
F) A) and C)

Question 20

Defense mechanisms that respond at the same speed and efficiency upon repeated exposure are classified as ________ immunity and defense mechanisms that increase in speed and strength upon repeated exposure are classified as ________ immunity.

Accepted Answer

A)   innate; non-specific
B)   adaptive; innate
C)   specific; innate
D)   innate; adaptiveE) B) and D)
F) A) and C)

Exam 22: Lymphatic System and Immunity

Edema of the inguinal region results from removal of popliteal lymph nodes.

Correct AnswerverifiedShow Answer

Defense mechanisms that respond at the same speed and efficiency upon repeated exposure are classified as ________ immunity and defense mechanisms that increase in speed and strength upon repeated exposure are classified as ________ immunity.

Correct AnswerverifiedShow Answer

The lymphatic system plays a role in maintaining fluid balance within the body by

Correct AnswerverifiedShow Answer

A molecule produced by cells of the right arm moves into a nearby lymphatic vessel. This molecule will eventually enter the bloodstream by passing through the ________ into the ________.

Correct AnswerverifiedShow Answer

Active natural immunity occurs when

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The lymphatic system is involved in

Correct AnswerverifiedShow Answer

Which of the following is NOT a mechanism of complement action?

Correct AnswerverifiedShow Answer

Germinal centers are the sites of

Correct AnswerverifiedShow Answer

Adaptive immunity is stimulated by ________.

Correct AnswerverifiedShow Answer

Lymph exits a lymph node via the ________.

Correct AnswerverifiedShow Answer

Which of the following is not part of the lymphatic system?

Correct AnswerverifiedShow Answer

Which of the following is NOT a key sign of inflammation?

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The HIV virus infects ________.

Correct AnswerverifiedShow Answer

A protein that helps to protect the body against viral infections is ________.

Correct AnswerverifiedShow Answer

The MHC class I antigen complex displays a foreign antigen on the cell surface. This prompts the immune system to destroy

Correct AnswerverifiedShow Answer

The periarterial lymphatic sheath and the lymphatic nodules are part of the red pulp of the spleen.

Correct AnswerverifiedShow Answer

A small molecule that can cause an allergic reaction is a/an ________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Valves in lymphatic vessels allow substances to enter the vessel but reduce the ability for the substance from exiting the vessel.

Correct AnswerverifiedShow Answer

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Defense mechanisms that respond at the same speed and efficiency upon repeated exposure are classified as immunity and defense mechanisms that increase in speed and strength upon repeated exposure are classified as immunity.

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A molecule produced by cells of the right arm moves into a nearby lymphatic vessel. This molecule will eventually enter the bloodstream by passing through the into the .

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