Deck 21: Immune System

Question 1

Which of the T cells destroys pathogens by punching holes in their cell membrane and secreting lymphokines?

A) killer T cells
B) helper T cells
C) suppressor T cells
D) memory T cells

Answer 1

killer T cells

Question 2

A booster

A) increases antibodies to an antigen.
B) stimulates the liver to detoxify antigens.
C) kills a pathogen.
D) conveys passive immunity.

Answer 2

increases antibodies to an antigen.

Question 3

Which of the following is classified as killer,helper,suppressor,and memory?

A) granulocytes
B) T cells
C) antibodies
D) vaccines

Answer 3

T cells

Question 4

B and T cells are

A) tonsils.
B) lymphocytes.
C) lymph nodes.
D) antibodies.

Question 5

What is the effect of a massive release of histamine?

A) jaundice
B) anemia
C) thrombosis
D) wheezing and hypotension

Question 6

What is the name of a severe hypersensitivity reaction?

A) cyanosis
B) immunocompetence
C) autoimmunity
D) anaphylaxis

Question 7

You had measles as a child.Which of the following best describes your immunity to measles?

A) artificially acquired active immunity
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B) artificially acquired passive immunity
C) naturally acquired passive immunity
D) naturally acquired active immunity

Question 8

Phagocytosis

A) is a function only of the T cell.
B) is a form of specific immunity.
C) does not require a specific antigen.
D) is mediated through antibodies.

Question 9

Which of the following cells engulfs the pathogen to achieve "antigen presentation"?

A) a red blood cell
B) a macrophage
C) antibodies
D) vaccines

Question 10

Because antibodies are carried by the blood,this type of immunity is also called

A) immunotolerance.
B) cell-mediated immunity.
C) humoral immunity.
D) autoimmunity.

Question 11

Which of the following represents specific immunity?

A) inflammation
B) interferons
C) natural killer cells
D) B and T cells

Question 12

Which cells secrete a lymphokine that stimulates both T and B cells?

A) platelets
B) killer T cells
C) erythrocytes
D) helper T cells

Question 13

IgE,IgA,IgM,and IgG are

A) antigens.
B) interferons.
C) antibodies.
D) complement proteins.

Question 14

An allergen is a(n)

A) antibody.
B) macrophage.
C) lymphokine.
D) antigen.

Question 15

Which of the following is the treatment of choice for an anaphylactic reaction?

A) a bronchoconstricting agent
B) gamma globulin
C) epinephrine
D) histamine

Question 16

A severe anaphylactic reaction causes death by

A) renal failure.
B) respiratory obstruction.
C) bleeding.
D) infection.

Question 17

Which of the following is (are)most related to antibody-mediated immunity?

A) tears
B) saliva
C) sneezing
D) plasma cells

Question 18

This cell engages in cell-to-cell combat.

A) erythrocyte
B) platelet
C) B cell
D) T cell

Question 19

Redness,heat,swelling,and pain are indicative of

A) hypersensitivity reaction.
B) anaphylaxis.
C) inflammation.
D) autoimmune disease.

Question 20

Which of the following are most associated with plasma cells and antibodies?

A) neutrophils
B) eosinophils
C) B cells
D) T cells

Question 21

Which of the following is most associated with a low plasma level of antibodies?

A) the "booster" response
B) the primary response
C) an autoimmune response
D) anaphylaxis

Question 22

What is the term that refers to the use of dead or attenuated pathogens to stimulate antibody production?

A) immunotolerance
B) autoimmunity
C) immunization
D) inflammation

Question 23

A vaccine

A) is a gamma globulin.
B) conveys active immunity.
C) contains antibodies.
D) is the same as an antitoxin.

Question 24

Which group is incorrect?

A) first line of defense:skin,mucous membrane,tears,sneezing
B) specific immunity:B cells,T cells
C) mechanical barriers:skin,mucous membrane
D) chemical barriers:tears,saliva,stomach acid,B cells,T cells

Question 25

Which of the following indicates why you will not get chickenpox as an adult if you were infected as a child?

A) naturally acquired passive immunity
B) naturally acquired active immunity
C) artificially acquired active immunity
D) artificially acquired passive immunity

Question 26

HIV (human immunodeficiency virus)produces severe impairment of the immune system by attacking these cells.

A) plasma cells
B) suppressor T cells
C) helper T cells
D) platelets

Question 27

Which of the following is most related to the placental transfer of antibodies from the mother to the fetus?

A) naturally acquired active immunity
B) naturally acquired passive immunity
C) artificially acquired active immunity
D) artificially acquired passive immunity

Question 28

The purpose of vaccination is to provide an initial exposure to an antigen to stimulate the formation of ___________.

A) killer T cells
B) complement
C) anaphylaxis
D) memory cells

Question 29

What is the name of the toxin that has been altered so that it is harmless,yet still antigenic?

A) vaccine
B) antibody
C) gamma globulin
D) toxoid

Question 30

Which of the following is true of activation of mast cells?

A) causes the release of epinephrine
B) is necessary for T-cell activation
C) prevents the development of anaphylaxis
D) causes the release of histamine

Question 31

These T cells do not participate in the destruction of the pathogen,but allow for a more rapid response if the antigen is presented at a later time.

A) killer T cells
B) suppressor T cells
C) thrombocytes
D) memory T cells

Question 32

Which group is incorrect?

A) mechanical barriers:skin,mucous membrane
B) protective proteins:interferons,complement proteins
C) nonspecific immunity:inflammation,NK cells,fever,T cells
D) signs of inflammation:redness,heat,swelling,pain

Question 33

Binding of the bee venom allergen to antibodies on the mast cells causes a massive release of which substance?

A) vaccine
B) histamine
C) bilirubin
D) intrinsic factor

Question 34

Which of the following is characterized by a local tissue response to T cell activity?

A) anaphylaxis
B) wheezing,edema,and hypotension
C) contact dermatitis
D) immunotolerance

Question 35

A breastfed infant is initially immune to the same diseases as her mom.Which of the following describes the infant's immunity?

A) naturally acquired passive immunity
B) naturally acquired active immunity
C) artificially acquired active immunity
D) artificially acquired passive immunity

Question 36

What is the term that refers to the level of antibodies in your blood?

A) T cell count
B) titer
C) white blood cell count
D) hematocrit

Question 37

Which of the following conditions is most common in people with AIDS (acquired immunodeficiency syndrome)?

A) anaphylaxis
B) autoimmune diseases
C) infections
D) hypertension