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Active Lecture Questions Chapter 19 Disorders Associated with the Immune System Copyright © 2010 Pearson Education, Inc. Desensitization to prevent an allergic response can be accomplished by injecting small, repeated doses of a. b. c. d. e. IgE antibodies. the antigen (allergen). histamine. IgG antibodies. antihistamine. What does “pluripotent” mean? a. Ability of a single cell to develop into an embryonic or adult stem cell. b. Ability of a stem cell to develop into many different cell types. c. A cell without MHC I and MHC II antigens. d. Ability of a single stem cell to heal different types of diseases. e. Ability of an adult cell to become a stem cell. Cytotoxic autoimmunity differs from immune complex autoimmunity in that cytotoxic reactions a. b. c. d. e. involve antibodies. do not involve complement. are caused by T cells. do not involve IgE antibodies. none of the above Antibodies against HIV are ineffective for all of the following reasons except a. the fact that antibodies aren’t made against HIV. b. transmission by cell–cell fusion. c. antigenic changes. d. latency. e. persistence of virus particles in vacuoles. Which of the following is not the cause of a natural immunodeficiency? a. a recessive gene resulting in lack of a thymus gland b. a recessive gene resulting in few B cells c. HIV infection d. immunosuppressant drugs e. none of the above Which antibodies will be found naturally in the serum of a person with blood type A, Rh+? a. b. c. d. e. anti A, anti B, anti Rh anti A, anti Rh anti A anti B, anti Rh anti B What type of hypersensitivity is due to localized anaphylaxis. a. b. c. d. e. type I hypersensitivity type II hypersensitivity type III hypersensitivity type IV hypersensitivity all of the above What type of hypersensitivity is due to allergic contact dermatitis. a. b. c. d. e. type I hypersensitivity type II hypersensitivity type III hypersensitivity type IV hypersensitivity all of the above What type of hypersensitivity is due to immune complexes. a. b. c. d. e. type I hypersensitivity type II hypersensitivity type III hypersensitivity type IV hypersensitivity all of the above What type of hypersensitivity is due to a reaction to an incompatible blood transfusion. a. b. c. d. e. type I hypersensitivity type II hypersensitivity type III hypersensitivity type IV hypersensitivity all of the above Hypersensitivity refers to an a. b. c. d. Allergen Antibody Immunity Altered antigenic response What is the mediator of an allergic reaction stored in granules? a. b. c. d. Histamine Prostaglandins Leukotrienes Acetylcholine Which of the following can result from systemic anaphylaxis? a. b. c. d. Contact dermatitis Hives Shock Asthma What is the approximate percentage of autoimmune disease cases that affect women? a. b. c. d. 75% 50% 60% 30% Which antibodies are associated with autoimmunity? a. b. c. d. IgG and IgM IgA IgD IgE A person with which of the following develops a goiter and markedly bulging eyes? a. b. c. d. Multiple sclerosis Graves’ disease Psoriasis Hepatitis C When a monoclonal antibody is combined with a toxic agent, it forms a(n) a. b. c. d. Activated antibody Immunotoxin Probe Tumor necrosis factor When does a person manifest a hypersensitive reaction? a. b. c. d. On primary exposure On a second or subsequent exposure During immunosuppression During an autoimmune disease Which of the following increases a person’s susceptibility to certain cancers? a. b. c. d. Immunosuppression Immunologic surveillance Immunologic enhancement Cytotoxic destruction A promising new technique for analyzing HLA is the use of a(n) a. b. c. d. Precipitation reaction Neutralization reaction Polymerase chain reaction Agglutination reaction Xenotransplanation products are tissues or organs transplanted from a. b. c. d. Animals An identical twin Yourself Another human What type of response do the immunocompetent cells in transplanted bone marrow mount against the tissue into which they have been transplanted? a. b. c. d. Cell-mediated immune response Humoral immune response Hyperacute response Hypersensitive response The primary mode of transmission of HIV worldwide is a. b. c. d. Respiratory Blood Homosexual transmission Heterosexual transmission HIV is able to evade immune defenses by a. b. c. d. Undergoing rapid antigenic changes Producing a lot of antibody Killing the host cells Becoming latent What percentage of infants born to HIVpositive mothers are born infected? a. b. c. d. 50% 20% 30% 60%