Question 1

The __________ tonsils are the largest,and their surgical removal (tonsillectomy) used to be one of the most common surgical procedures performed in children.

Accepted Answer

A)  adenoid
B)  lingual
C)  palatine
D)  pharyngeal
E)  nasopharyngealF) C) and D)
G) B) and C)

Question 2

Basophils of the blood help to get defensive leukocytes to the site quickly by releasing an anticoagulant called __________ and a vasodilator called __________.

Accepted Answer

A)  bradykinin; histamine
B)  selectin; prostaglandin
C)  histamine; heparin
D)  heparin; histamine
E)  prostaglandins; selectinF) None of the above
G) C) and E)

Question 3

When an enemy cell is present,a(n) __________ secrete perforins,which bore a hole in the enemy cell membrane.

Accepted Answer

A)  interferon
B)  interleukin
C)  natural killer cell
D)  antibody
E)  opsonizationF) All of the above
G) A) and C)

Question 4

Which of the following is something antibodies do not do?

Accepted Answer

A)  Link antigen molecules together
B)  Neutralize antigens by binding to regions of an antigen that can be pathogenic
C)  Bind to enemy cells, thus changing their shape so their complement-binding sites are exposed
D)  Differentiate into memory antibodies, which upon reexposure to the same pathogen would mount a quicker attack
E)  Bind antigen molecules of two or more enemy cells and stick them togetherF) All of the above
G) A) and B)

Question 5

Interferons are secreted in response to bacterial infections.

Accepted Answer

A) True 
 B)False

Question 6

__________ are the largest of the lymphatic vessels,and they empty into the __________.

Accepted Answer

A)  Lymphatic trunks; collecting ducts
B)  Lymphatic trunks; subclavian arteries
C)  Lymphatic trunks; subclavian veins
D)  Collecting ducts; subclavian veins
E)  Collecting ducts; subclavian arteriesF) A) and D)
G) A) and C)

Question 7

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

Accepted Answer

A) True 
 B)False

Question 8

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 D)

Question 9

Which of the following cannot act as antigen-presenting cells?

Accepted Answer

A)  Reticular cells
B)  Dendritic cells
C)  Macrophages
D)  B cells
E)  T cellsF) A) and B)
G) All of the above

Question 10

Cytotoxic T (TC) cells are like natural killer (NK) cells because they both __________.

Accepted Answer

A)  secrete interferons
B)  secrete granzymes and perforin
C)  participate in the immune response
D)  participate in nonspecific resistance
E)  secrete tumor necrosis factor (TNF) F) A) and B)
G) B) and E)

Question 11

Mucous membranes prevent most pathogens from entering the body because of the stickiness of the mucus and the presence of lysozymes.

Accepted Answer

A) True 
 B)False

Question 12

T cells achieve immunocompetence in the __________.

Accepted Answer

A)  bone marrow
B)  bloodstream
C)  spleen
D)  thymus
E)  liverF) B) and D)
G) None of the above

Question 13

Complement fixation cannot lead to __________.

Accepted Answer

A)  enhanced inflammation
B)  opsonization
C)  endogenous pyrexia
D)  bacterial phagocytosis
E)  cytolysisF) A) and E)
G) B) and C)

Question 14

Clonal selection of T cells happens in the thymus.

Accepted Answer

A) True 
 B)False

Question 15

Pyrogens act by increasing the set point for body temperature in the thalamus.

Accepted Answer

A) True 
 B)False

Question 16

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

Accepted Answer

A) True 
 B)False

Question 17

Cellular (cell-mediated) immunity is effective against __________.

Accepted Answer

A)  allergens
B)  venoms
C)  cancer cells
D)  extracellular viruses
E)  toxinsF) B) and C)
G) B) and E)

Question 18

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

Accepted Answer

A) True 
 B)False

Question 19

One characteristic of the immune response is specificity.This means that __________.

Accepted Answer

A)  immunity starts in defined organs in the body
B)  immunity starts in specialized tissues in the body
C)  immunity is carried on by a specific group of cells of the immune system
D)  immunity is directed against a particular pathogen
E)  immunity is carried on by a specific group of tissues of the immune systemF) C) and D)
G) None of the above

Question 20

__________ are secreted by cells infected with viruses,alerting neighboring cells and protecting them from becoming infected.

Accepted Answer

A)  Complement system globulins
B)  Interferons
C)  Granzymes
D)  Pyrogens
E)  PerforinsF) C) and D)
G) A) and C)

Exam 21: The Lymphatic and Immune Systems

Cellular (cell-mediated) immunity is effective against __________.

Correct AnswerverifiedShow Answer

Which of the following cannot act as antigen-presenting cells?

Correct AnswerverifiedShow Answer

T cells achieve immunocompetence in the __________.

Correct AnswerverifiedShow Answer

Pyrogens act by increasing the set point for body temperature in the thalamus.

Correct AnswerverifiedShow Answer

__________ are the largest of the lymphatic vessels,and they empty into the __________.

Correct AnswerverifiedShow Answer

Complement fixation cannot lead to __________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

__________ are secreted by cells infected with viruses,alerting neighboring cells and protecting them from becoming infected.

Correct AnswerverifiedShow Answer

The __________ tonsils are the largest,and their surgical removal (tonsillectomy) used to be one of the most common surgical procedures performed in children.

Correct AnswerverifiedShow Answer

Cytotoxic T (TC) cells are like natural killer (NK) cells because they both __________.

Correct AnswerverifiedShow Answer

When an enemy cell is present,a(n) __________ secrete perforins,which bore a hole in the enemy cell membrane.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Clonal selection of T cells happens in the thymus.

Correct AnswerverifiedShow Answer

Mucous membranes prevent most pathogens from entering the body because of the stickiness of the mucus and the presence of lysozymes.

Correct AnswerverifiedShow Answer

Basophils of the blood help to get defensive leukocytes to the site quickly by releasing an anticoagulant called __________ and a vasodilator called __________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is something antibodies do not do?

Correct AnswerverifiedShow Answer

One characteristic of the immune response is specificity.This means that __________.

Correct AnswerverifiedShow Answer

Interferons are secreted in response to bacterial infections.

Correct AnswerverifiedShow Answer

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are the largest of the lymphatic vessels,and they empty into the .

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Cytotoxic T (T_C) cells are like natural killer (NK) cells because they both __________.

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Basophils of the blood help to get defensive leukocytes to the site quickly by releasing an anticoagulant called and a vasodilator called .

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