Question 1

The chemical found in tears and saliva that hydrolyzes the peptidoglycan in certain bacterial cell walls is

Accepted Answer

A)  lactic acid.
B)  hydrochloric acid.
C)  lysozyme.
D)  histamine.
E)  bile.F) A) and E)
G) A) and B)

Question 2

PAMPs are molecules shared by many microorganisms but not present in mammals.

Accepted Answer

A) True 
 B)False

Question 3

Joe cut his finger on a sharp twig and now is experiencing dolor.This means

Accepted Answer

A)  redness.
B)  pain.
C)  loss of function.
D)  warmth.
E)  swelling.F) B) and E)
G) B) and D)

Question 4

Dermacidin is an antimicrobic peptide secreted by skin cells, which breaks down bacterial membranes and causes them to lyse.

Accepted Answer

A) True 
 B)False

Question 5

Diapedesis is the

Accepted Answer

A)  loss of blood due to hemorrhaging.
B)  production of only red blood cells.
C)  production of white blood cells, red blood cells, and platelets.
D)  plugging of broken vessels to stop bleeding.
E)  migration of white blood cells from the blood out to the tissues.F) A) and D)
G) A) and C)

Question 6

Due to the way the lymph drains from lymph nodes, cell and products of immunity continually

Accepted Answer

A)  enter the regular circulatory system.
B)  enter the liver.
C)  enter the gastrointestinal tract.
D)  enter the gall bladder.
E)  enter the thymus gland.F) C) and D)
G) A) and E)

Question 7

These white blood cells are particularly attracted to sites of parasitic infections.They are known as

Accepted Answer

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

Question 8

The _____ region of a lymph node has germinal centers packed with T and B lymphocytes.

Accepted Answer

The answer of The _____ region of a lymph node...

Question 9

The four classic signs and symptoms of inflammation include all the following, except

Accepted Answer

A)  redness.
B)  warmth.
C)  swelling.
D)  pain.
E)  chills.F) B) and C)
G) A) and D)

Question 10

Plasma is also called lymph.

Accepted Answer

A) True 
 B)False

Question 11

All the following are events of early inflammation, except

Accepted Answer

A)  macrophages appear first and begin phagocytosis.
B)  chemical mediators and cytokines are released.
C)  brief vasoconstriction is followed by vasodilation.
D)  exudate and pus can accumulate.
E)  capillaries become more permeable resulting in edema.F) C) and D)
G) B) and D)

Question 12

Which of the following nonspecific mediators inhibits virus replication and cellular division while increasing some lymphocyte action?

Accepted Answer

A)  TNF
B)  IL-1
C)  IL-6
D)  IFN
E)  ChemokinesF) All of the above
G) B) and E)

Question 13

Describe the physical or anatomical barriers at the following body sites, and explain how they accomplish body defense: a) eyes, b) skin, c) gastrointestinal tract, d) respiratory tract, and e) urinary tract.

Accepted Answer

a) Eyes: The eyes are protected by physi...

Question 14

When macrophages migrate to the skin and remain there, they are called _____ cells.

Accepted Answer

A)  alveolar
B)  Langerhans
C)  GALT
D)  KupfferE) A) and D)
F) All of the above

Question 15

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 16

All of the following pertain to platelets, except

Accepted Answer

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

Question 17

The most numerous WBCs, that have multilobed nuclei and are very phagocytic are

Accepted Answer

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

Question 18

Endotoxin is an exogenous pyrogen.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following lymphoid organs has the immunological function of filtering pathogens from the blood?

Accepted Answer

A)  Lymph nodes
B)  Thymus
C)  spleen
D)  GALT
E)  TonsilsF) B) and E)
G) A) and E)

Question 20

Components of the first line of defense include all the following, except

Accepted Answer

A)  the tough cell sheet of the upper epidermis of the skin.
B)  nasal hairs.
C)  flushing action of tears and blinking.
D)  flushing action of urine.
E)  phagocytic white blood cells.F) C) and D)
G) A) and B)

Exam 14: An Introduction to Host Defenses and Innate Immunities

All the following are events of early inflammation, except

Correct AnswerverifiedShow Answer

Which of the following lymphoid organs has the immunological function of filtering pathogens from the blood?

Correct AnswerverifiedShow Answer

Plasma is also called lymph.

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

Joe cut his finger on a sharp twig and now is experiencing dolor.This means

Correct AnswerverifiedShow Answer

Components of the first line of defense include all the following, except

Correct AnswerverifiedShow Answer

The _____ region of a lymph node has germinal centers packed with T and B lymphocytes.

Correct AnswerverifiedShow Answer

The chemical found in tears and saliva that hydrolyzes the peptidoglycan in certain bacterial cell walls is

Correct AnswerverifiedShow Answer

The four classic signs and symptoms of inflammation include all the following, except

Correct AnswerverifiedShow Answer

PAMPs are molecules shared by many microorganisms but not present in mammals.

Correct AnswerverifiedShow Answer

Diapedesis is the

Correct AnswerverifiedShow Answer

Due to the way the lymph drains from lymph nodes, cell and products of immunity continually

Correct AnswerverifiedShow Answer

The most numerous WBCs, that have multilobed nuclei and are very phagocytic are

Correct AnswerverifiedShow Answer

Endotoxin is an exogenous pyrogen.

Correct AnswerverifiedShow Answer

All of the following pertain to platelets, except

Correct AnswerverifiedShow Answer

These white blood cells are particularly attracted to sites of parasitic infections.They are known as

Correct AnswerverifiedShow Answer

Describe the physical or anatomical barriers at the following body sites, and explain how they accomplish body defense: a) eyes, b) skin, c) gastrointestinal tract, d) respiratory tract, and e) urinary tract.

Correct AnswerAnswered by ExamLex AIa) Eyes: The eyes are protected by physi...View AnswerShow Answer

Which of the following nonspecific mediators inhibits virus replication and cellular division while increasing some lymphocyte action?

Correct AnswerverifiedShow Answer

When macrophages migrate to the skin and remain there, they are called _____ cells.

Correct AnswerverifiedShow Answer

Dermacidin is an antimicrobic peptide secreted by skin cells, which breaks down bacterial membranes and causes them to lyse.

Correct AnswerverifiedShow Answer

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Answered by ExamLex AI
a) Eyes: The eyes are protected by physi...
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