Question 1

Which of the following is not a mechanical barrier against microorganisms?

Accepted Answer

A)  Saliva
B)  Urine
C)  Tears
D)  DiarrheaE) B) and D)
F) None of the above

Question 2

Muscle contraction moves lymph through lymphatic vessels.

Accepted Answer

A) True 
 B)False

Question 3

What is not true of the spleen?

Accepted Answer

A)  It is the largest lymphatic organ.
B)  It contains nodules similar to lymphatic nodules.
C)  It contains many phagocytes.
D)  The spaces in the lobes of the spleen are filled with lymph.E) A) and D)
F) None of the above

Question 4

The mononuclear phagocytic system includes

Accepted Answer

A)  T lymphocytes and B lymphocytes.
B)  monocytes, macrophages, and neutrophils.
C)  basophils, neutrophils, and eosinophils.
D)  mast cells and megakaryocytes.E) All of the above
F) A) and D)

Question 5

Lymphatic capillaries are thin-walled, closed-ended tubes.

Accepted Answer

A) True 
 B)False

Question 6

Cytotoxic T cells destroy their target cells by releasing perforin, which causes holes to form in

Accepted Answer

A)  cell membranes.
B)  lysosomes.
C)  ribosomes.
D)  DNA molecules.E) None of the above
F) A) and C)

Question 7

Complement proteins, which are activated when IgG or IgM antibodies bind antigen,

Accepted Answer

A)  stimulate chemotaxis, in which neutrophils and macrophages are repelled from the affected area.
B)  cause opsonization, which coats the antibody-antigen complexes in a way that attracts phagocytes.
C)  cause lysis of the T cells.
D)  stimulate cytokine release.E) A) and C)
F) A) and B)

Question 8

Disease-causing agents such as viruses and bacteria are called ________.

Accepted Answer

The answer of Disease-causing agents such as viruses and bacteria...

Question 9

A newborn is protected against certain digestive and respiratory infections by IgA received via the mother's

Accepted Answer

A)  milk.
B)  blood.
C)  intestine.
D)  placenta.E) None of the above
F) C) and D)

Question 10

Widely distributed phagocytic cells that remain fixed in position are part of the ________.

Accepted Answer

mononuclea...

Question 11

One function of lymph is

Accepted Answer

A)  return of proteins to the tissue fluid.
B)  transport of foreign particles to the kidneys.
C)  transport of foreign particles to the lymph nodes.
D)  transport of oxygen and carbon dioxide.E) B) and D)
F) B) and C)

Question 12

During the primary immune response, B lymphocytes give rise to plasma cells.

Accepted Answer

A) True 
 B)False

Question 13

Low-grade fever is an effective defense for short periods of time because it

Accepted Answer

A)  increases iron in the blood.
B)  includes pyrogens that destroy the pathogens.
C)  increases temperature, which slows the growth of bacteria.
D)  slows the attack of phagocytes.E) A) and B)
F) B) and C)

Question 14

The tissues of the spleen are called

Accepted Answer

A)  red and white pulp.
B)  black and blue pulp.
C)  tonsils and Peyer's patches.
D)  cellular and fibrous.E) B) and C)
F) All of the above

Question 15

In the cellular immune response

Accepted Answer

A)  B cells produce antibodies directly against antigens.
B)  T cells produce antibodies directly against antigens.
C)  T cells attach directly to antigens and destroy them.
D)  T cells attack healthy body cells.E) A) and B)
F) A) and D)

Question 16

Choose the item that would provoke a cell to produce interferons.

Accepted Answer

A)  Chemical irritants
B)  Viruses
C)  Bacteria
D)  FungiE) A) and B)
F) A) and C)

Question 17

Immunoglobulin A is abundant in endocrine gland secretions.

Accepted Answer

A) True 
 B)False

Question 18

What cell types are targeted by cytotoxic T cells?

Accepted Answer

A)  cytotoxic cells.
B)  T cells.
C)  all antigen-bearing cells.
D)  cancer cells and virally infected cells.E) None of the above
F) All of the above

Question 19

IgA is passed to a newborn through maternal ________ and breast milk.

Accepted Answer

A)  colostrum
B)  blood
C)  feces
D)  placentaE) A) and B)
F) A) and C)

Question 20

In HIV infection, reverse transcriptase

Accepted Answer

A)  makes DNA from viral RNA.
B)  makes RNA from viral DNA.
C)  makes protein from viral RNA.
D)  makes protein from viral DNA.E) None of the above
F) A) and B)

Exam 16: Lymphatic System and Immunity

Choose the item that would provoke a cell to produce interferons.

Correct AnswerverifiedShow Answer

Disease-causing agents such as viruses and bacteria are called ________.

Correct AnswerverifiedShow Answer

A newborn is protected against certain digestive and respiratory infections by IgA received via the mother's

Correct AnswerverifiedShow Answer

One function of lymph is

Correct AnswerverifiedShow Answer

Immunoglobulin A is abundant in endocrine gland secretions.

Correct AnswerverifiedShow Answer

The mononuclear phagocytic system includes

Correct AnswerverifiedShow Answer

Lymphatic capillaries are thin-walled, closed-ended tubes.

Correct AnswerverifiedShow Answer

In HIV infection, reverse transcriptase

Correct AnswerverifiedShow Answer

What is not true of the spleen?

Correct AnswerverifiedShow Answer

Low-grade fever is an effective defense for short periods of time because it

Correct AnswerverifiedShow Answer

Cytotoxic T cells destroy their target cells by releasing perforin, which causes holes to form in

Correct AnswerverifiedShow Answer

Muscle contraction moves lymph through lymphatic vessels.

Correct AnswerverifiedShow Answer

During the primary immune response, B lymphocytes give rise to plasma cells.

Correct AnswerverifiedShow Answer

IgA is passed to a newborn through maternal ________ and breast milk.

Correct AnswerverifiedShow Answer

What cell types are targeted by cytotoxic T cells?

Correct AnswerverifiedShow Answer

The tissues of the spleen are called

Correct AnswerverifiedShow Answer

Widely distributed phagocytic cells that remain fixed in position are part of the ________.

Correct Answerverifiedmononuclea...View AnswerShow Answer

Complement proteins, which are activated when IgG or IgM antibodies bind antigen,

Correct AnswerverifiedShow Answer

In the cellular immune response

Correct AnswerverifiedShow Answer

Which of the following is not a mechanical barrier against microorganisms?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
mononuclea...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified