Ch.22- Lymphatic System and Immunity

Anti-A and Anti-B blood typing antibodies are of which class? a) IgM b) IgE c) IgG d) IgD e) IgA

a) IgM

After the appearance of bacteria in the body, which immune cell is present for the shortest amount of time? (Figure 22-26) a) NK cells b) neutrophils c) plasma cells d) macrophages e) cytotoxic T cells

a) NK cells

Another term for antibodies is a) interferons. b) immunoglobulins. c) interleukins. d) cytosolic factors. e) cytokines.

b) immunoglobulins.

The cell that dominates the deep cortical region of a lymph node is the ________ cell. a) T b) NK c) nodule d) plasma e) B

a) T

The portions of an antigen to which antibodies bind are the a) antigenic determinant sites. b) reactive sites. c) active sites. d) antigen activation segments. e) antibody active sites.

a) antigenic determinant sites.

The classic pathway of complement activation begins when the protein C1 binds to a) two antibodies attached to an antigen. b) the plasma membrane of bacteria. c) a cell surface antigen. d) a plasma protein. e) the cell wall of bacteria.

a) two antibodies attached to an antigen

Compared to blood capillaries, lymph capillaries exhibit all of the following except that they a) have no basement membrane. b) are smaller in diameter. c) have only a tunica interna. d) are frequently irregular in shape. e) have walls of endothelial cells that overlap like shingles.

b) are smaller in diameter.

An inflammatory response is triggered when a) neutrophils phagocytize bacteria. b) mast cells release histamine and heparin. c) blood flow to an area increases. d) T cells release interferon. e) red blood cells release pyrogens.

b) mast cells release histamine and heparin.

All of the following are true of the thymus gland except that it a) involutes after puberty. b) reaches its greatest relative size during the second year of life. c) activates B cells. d) lies in the anterior mediastinum. e) produces T cells.

c) activates B cells.

The body's innate defenses include all of the following except a) complement. b) interferon. c) antibodies. d) inflammation. e) the skin.

c) antibodies.

T cells and B cells can be activated only by a) pathogens. b) disease-causing agents. c) exposure to a specific antigen at a specific site in a plasma membrane. d) interleukins, interferons, and colony-stimulating factors. e) cells infected with viruses, bacteria, or cancer cells.

c) exposure to a specific antigen at a specific site in a plasma membrane.

Which type of interferon attracts and stimulates NK cells as a way to enhance viral resistance to viral infection? (Figure 22-12) a) interferon beta b) interferon omega c) interferon alpha d) interferon gamma e) interferon delta

c) interferon alpha

What types of cells are found in the white pulp of the spleen and in the red pulp of the spleen? (Figure 22-8) a) red blood cells; macrophages b) lymphocytes; epithelial reticular cells c) lymphocytes; red blood cells d) red blood cells; lymphocytes e) epithelial cells; endocrine cells

c) lymphocytes; red blood cells

During a primary humoral response to antigens all of the following occur except a) B cells may differentiate into plasma cells immediately. b) the first immunoglobulins to appear in circulation are of the IgM type. c) neutrophils invade the surrounding areas, releasing chemotactic substances. d) B cells may undergo several rounds of mitosis before producing plasma cells and memory cells. d) antibody levels do not peak until 1 to 2 weeks after the initial exposure.

c) neutrophils invade the surrounding areas, releasing chemotactic substances.

T Lymphocytes are produced and stored in all of the following except a) lymphatic nodules. b) the spleen. c) the brain. d) the thymus. e) lymph node organs.

c) the brain.

Defense of the body against a particular pathogen is provided by a) immunological surveillance. b) innate immunity. c) fever. d) adaptive immunity. e) skin defenses.

d) adaptive immunity.

The complement system works closely with and complements the action of a) pyrogens. b) phagocytes. c) interferons. d) antibodies. e) microphages.

d) antibodies.

A T cell can only become activated after being physically or chemically stimulated by the abnormal target cell in a process called a) opsonization. b) neutralization. c) sensitization. d) costimulation. e) precipitation.

d) costimulation.

During the primary response, which antibody peaks sooner? During the secondary response, which antibody level is higher? (Figure 22-25) a) IgE; IgA b) IgG; IgM c) IgD; IgE d) IgA; IgG e) IgM; IgG

e) IgM; IgG

Immediate hypersensitivity reactions like hay fever may be treated by a) immunosuppressive drugs. b) interferons. c) anti-rheumatic drugs. d) aspirin. e) antihistamines.

e) antihistamines.

What type of immunity develops after receiving a vaccine? (Figure 22-17) a) innate immunity b) artificially acquired passive immunity c) naturally acquired active immunity d) naturally acquired passive immunity e) artificially acquired active immunity

e) artificially acquired active immunity

B cells are primarily activated by the activities of a) antigens. b) antibodies. c) plasma cells. d) macrophages. e) helper T cells.

e) helper T cells.

Various types of macrophages are derived from a) basophils. b) eosinophils. c) lymphocytes. d) neutrophils. e) monocytes.

e) monocytes.

The process by which soluble antigens combine with antibodies to form insoluble immune complexes is called a) neutralization. b) opsonization. c) activation. d) agglutination. e) precipitation.

e) precipitation.