Chapter 22

Humoral Immunity is the responsibility of Helper T cells B cells Memory cells Suppressor T cells

B cells

Cells that secrete perforin, lymphotoxins, and tumor necrosis factor: Cytotoxic T cells B cells Helper T cells macrophages

Cytotoxic T cells

Which of these antibody classes is a dimer in mucus, saliva, tears, milk, intestinal secretions? IgA IgD IgM IgE IgG

IgA

Which of these antibody classes is a B cell membrane antigen receptor? IgA IgD IgM IgE IgG

IgD

Which of these antibody classes stimulates release of histamines and attracts eosinophils? IgM IgE IgD IgA IgG

IgE

Which of these antibody classes crosses placenta to fetus and binds complement? IgD IgE IgM IgA IgG

IgG

Which of these antibody classes is a pentamer in plasma and triggers RBC agglutination? IgA IgE IgD IgG IgM

IgM

Which of these actions of antibodies results in masking the pathogenic region of antigens? Complement fixation Neutralization Precipitation Agglutination

Neutralization

What organs filter lymph?

Only lymph nodes

What kind of barrier is the mucus lining the stomach?

Physical

Which of these is a SPECIFIC defense against pathogens? defensins secreted by neutrophils phagocytic cells T and B cells cell-wall destroying lysozyme acid mantle of skin

T and B cells

Antigen presentation by cells with MHC-I proteins results in T cell activation developing tolerance triggering an autoimmune disease formation of memory cells

T cell activation

Cell-mediated immunity is the responsibility of NK cells B cells antigen-presenting cells T cells

T cells

The most common type of hypersensitivity, which can include anaphylaxis, is: Type II Type IV Type III Type I

Type I

The type of hypersensitivity called antibody-dependent cytotoxic, which includes myasthenia gravis, is: Type IV Type III Type I Type II

Type II

The type of hypersensitivity called Immune Complex, which can cause acute glomerulonephritis, is: Type IV Type II Type I Type III

Type III

The type of hypersensitivity called Delayed Hypersensitivity, which includes poison ivy and cosmetic allergies, is: Type III Type I Type IV Type II

Type IV

The Complement System is a mechanism to cause body temperature to rise the first step in healing the only way to trigger inflammation a group of plasma proteins that form a Membrane Attack Complex

a group of plasma proteins that form a Membrane Attack Complex

What type of MHC triggers an attack on the cell that presents a foreign antigen? a. MHC I b. MHC II

a. MHC I

Which of these is an example of an immune deficiency disease? a. SCID b. diabetes mellitus Type I c. Hashimoto's thyroiditis d. rheumatic fever

a. SCID

What type of lymphocyte is associated with producing antibodies? a. NK cell b. B lymphocyte c. cytotoxic T lymphocyte d. helper T lymphocyte

b. B lymphocyte

Which of these is an example of an APC (Antigen presenting cell)? a. NK cell b. macrophage c. T lymphocyte d. neutrophil

b. macrophage

What cells in loose connective tissue secrete histamine and heparin, and help initiate an inflammatory response? a. basophils b. mast cells c. lymphocytes d. macrophages

b. mast cells

Which of these is an example of a second line of defense? a. lysozyme in saliva b. neutrophils attacking a splinter c. lymphocytes attacking a virus

b. neutrophils attacking a splinter

Which of these cells secretes heparine and histamine? basophils eosinophils neutrophils natural killer cells macrophages

basophils

What is the adaptive benefit of edema? a. "Squeezes" pathogens; the pressure prevents them from replicating b. Collapses capillaries,preventing blood from reaching affected tissues c. Collapses venules, preventing pathogens from escaping and spreading through the blood d. Causes pain, alerting a person to injury

c. Collapses venules, preventing pathogens from escaping and spreading through the blood

What type of antibody is the longest-lasting in the circulating blood? a. IgA b. IgE c. IgG d. IgM

c. IgG

Complement proteins are part of... a. the cellular defenses b. the inflammatory response c. the second line of defense

c. the second line of defense

Which of these cells has antiparasitic effects? natural killer cells basophils macrophages eosinophils neutrophils

eosinophils

Which of these is NOT one of the cardinal signs of inflammation? edema macrophage activation heat pain erythema

macrophage activation

Which of these cells can zero in on body cells infected with viruses, or cancerous cells? eosinophils natural killer cells basophils neutrophils macrophages

natural killer cells

Which of these cells creates a respiratory burst and phagocytizes bacteria? macrophages basophils natural killer cells eosinophils neutrophils

neutrophils

MHC-II proteins are found on almost all typical body cells only on antigen presenting cells only on erythrocytes and platelets on all leukocytes

only on antigen presenting cells

Which of these is characteristic of Immunity? specificity hyperemia respiratory burst acid mantle secretion

specificity

What organ contains red pulp and white pulp?

spleen