Question 1

Histamine,serotonin,and bradykinin are all

Accepted Answer

A)  vasoactive mediators.
B)  mediators of B-cell activity.
C)  mediators of T-cell activity.
D)  mediators that increase chemotaxis.
E)  fever inducers.F) A) and D)
G) A) and C)

Question 2

All of the following are physical barriers to pathogens except

Accepted Answer

A)  unbroken skin.
B)  mucous.
C)  hairs.
D)  tears.
E)  T cells.F) B) and C)
G) B) and D)

Question 3

Which of the following is mismatched?

Accepted Answer

A)  interferon alpha and beta - inhibit viral replication
B)  interleukin-2 - stimulates T-cell mitosis and B-cell antibody production
C)  serotonin - causes smooth muscle contraction
D)  prostaglandins - activate eosinophils and B cells
E)  tumor necrosis factor - increases chemotaxis and phagocytosisF) A) and B)
G) A) and C)

Question 4

Plasma

Accepted Answer

A)  is the liquid portion of blood in which blood cells are suspended.
B)  is mostly water.
C)  contains albumin and globulins.
D)  contains fibrinogen.
E)  All of the choices are correct.F) None of the above
G) A) and E)

Question 5

Which white blood cells comprise 3-7% of circulating WBCs,are phagocytic,and can migrate out into body tissues to differentiate into macrophages?

Accepted Answer

A)  basophils
B)  eosinophils
C)  neutrophils
D)  monocytes
E)  lymphocytesF) C) and D)
G) B) and D)

Question 6

You have severe itching problems when bitten by an insect.Your friend gives you an ointment to spread on your skin around the bite so that the redness and itching do not bother you.The likely mechanism of this medication would be:

Accepted Answer

A)  destruction of phagocytic cells.
B)  inactivation of neutrophils.
C)  inhibition of lysozyme.
D)  antagonist of histamine.E) A) and C)
F) C) and D)

Question 7

Each of the following is a term reflecting a process involved in the migration of white blood cells except

Accepted Answer

A)  chemotaxis.
B)  diapedesis.
C)  motility.
D)  vasodilation.
E)  phagocytosis.F) A) and D)
G) B) and C)

Question 8

Which of the following is not an event of phagocytosis?

Accepted Answer

A)  diapedesis
B)  chemotaxis
C)  phagolysosome formation
D)  destruction
E)  ingestionF) None of the above
G) C) and D)

Question 9

When monocytes migrate from the blood,out to the tissues,they are transformed by inflammatory mediators to develop into

Accepted Answer

A)  primary phagocytes.
B)  neutrophils.
C)  killer T cells.
D)  cytotoxic T cells.
E)  macrophages.F) A) and E)
G) A) and C)

Question 10

All of the following pertain to platelets except that they

Accepted Answer

A)  contain hemoglobin to transport oxygen and carbon dioxide.
B)  function primarily in hemostasis.
C)  originate from giant multinucleate cells called megakaryocytes.
D)  function in blood clotting and inflammation.
E)  are not whole cells but are pieces of cells.F) C) and E)
G) A) and D)

Question 11

Lysozyme is found in

Accepted Answer

A)  tears.
B)  salivary secretions.
C)  sweat from sweat glands.
D)  All of the choices are correct.E) B) and D)
F) B) and C)

Question 12

Inflammatory responses are orchestrated by the immune system and are part of the body's third line of defense.

Accepted Answer

A) True 
 B)False

Question 13

The membrane attack stage of the complement cascade involves

Accepted Answer

A)  initiation of the cascade.
B)  production of inflammatory cytokines.
C)  a ring-shaped protein digesting holes in bacterial cell membranes and virus envelopes.
D)  cleaving of C3 to yield C3a and C3b.
E)  C1q binding to surface receptors on a membrane.F) A) and B)
G) A) and C)

Question 14

Which gland shrinks in size during adulthood and has hormones that function in maturation of T lymphocytes?

Accepted Answer

A)  lymph nodes
B)  thymus
C)  spleen
D)  GALT
E)  tonsilsF) B) and E)
G) A) and C)

Question 15

The blood cells that function in allergic reactions and inflammation,contain peroxidase and lysozyme,and particularly target parasitic worms and fungi are

Accepted Answer

A)  basophils.
B)  eosinophils.
C)  neutrophils.
D)  monocytes.
E)  lymphocytes.F) B) and C)
G) A) and B)

Question 16

Which of the following is not a chief function of inflammation?

Accepted Answer

A)  start tissue repair
B)  destroy microbes
C)  mobilize and attract immune components to injury site
D)  block further invasion
E)  cause a feverF) C) and D)
G) B) and D)

Question 17

The leakage of vascular fluid into tissues is called

Accepted Answer

A)  chemotaxis.
B)  edema.
C)  diapedesis.
D)  vasoactivity.
E)  pus.F) D) and E)
G) A) and B)

Question 18

The granules of neutrophils contain

Accepted Answer

A)  antibodies.
B)  antigens.
C)  digestive enzymes.
D)  histamine.
E)  peroxidase.F) C) and E)
G) A) and B)

Question 19

Which of the following is not a type of phagocyte?

Accepted Answer

A)  neutrophils
B)  macrophages
C)  Kupffer cells
D)  monocytes
E)  lymphocytesF) C) and D)
G) B) and D)

Question 20

Plasma is also called lymph.

Accepted Answer

A) True 
 B)False

Exam 14: Host Defenses I: Overview and Nonspecific Defenses

All of the following pertain to platelets except that they

Correct AnswerverifiedShow Answer

The leakage of vascular fluid into tissues is called

Correct AnswerverifiedShow Answer

Lysozyme is found in

Correct AnswerverifiedShow Answer

Which white blood cells comprise 3-7% of circulating WBCs,are phagocytic,and can migrate out into body tissues to differentiate into macrophages?

Correct AnswerverifiedShow Answer

The blood cells that function in allergic reactions and inflammation,contain peroxidase and lysozyme,and particularly target parasitic worms and fungi are

Correct AnswerverifiedShow Answer

When monocytes migrate from the blood,out to the tissues,they are transformed by inflammatory mediators to develop into

Correct AnswerverifiedShow Answer

Which of the following is not an event of phagocytosis?

Correct AnswerverifiedShow Answer

Which of the following is not a type of phagocyte?

Correct AnswerverifiedShow Answer

Which of the following is not a chief function of inflammation?

Correct AnswerverifiedShow Answer

You have severe itching problems when bitten by an insect.Your friend gives you an ointment to spread on your skin around the bite so that the redness and itching do not bother you.The likely mechanism of this medication would be:

Correct AnswerverifiedShow Answer

Plasma is also called lymph.

Correct AnswerverifiedShow Answer

All of the following are physical barriers to pathogens except

Correct AnswerverifiedShow Answer

Which gland shrinks in size during adulthood and has hormones that function in maturation of T lymphocytes?

Correct AnswerverifiedShow Answer

The membrane attack stage of the complement cascade involves

Correct AnswerverifiedShow Answer

Plasma

Correct AnswerverifiedShow Answer

Histamine,serotonin,and bradykinin are all

Correct AnswerverifiedShow Answer

Each of the following is a term reflecting a process involved in the migration of white blood cells except

Correct AnswerverifiedShow Answer

Inflammatory responses are orchestrated by the immune system and are part of the body's third line of defense.

Correct AnswerverifiedShow Answer

Which of the following is mismatched?

Correct AnswerverifiedShow Answer

The granules of neutrophils contain

Correct AnswerverifiedShow Answer

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