Chapter 34

Which of the following is not among the first line of defenses against infection? a. resident bacterial populations b. tears, saliva, gastric fluid c. urine flow d. skin e. complement f. lysozyme

Which of the following is not considered to be part of an innate immune response? nharnaritic rollc a. phagocytic cells b. fever c. histamines d. cytokines e. inflammation f. complement activation g. antigen-presenting cells h. none of the above

Which of the following is not considered to be part of an adaptive immune response? a. phagocytic cells b. antigen-presenting cells c. histamines d. cytokines e. antigen receptors f. complement activation g. antibodies h. none of the above

Activated complement proteins ______. a. form pore complexes b. promote inflammation c. attract phagocytes d. all of the above

_______ trigger immune responses. a. Cytokines b. Lysozymes c. Immunoglobulins d. Antigens e. Histamines f. all of the above

Name a defining characteristic of innate immunity.

Name a defining characteristic of adaptive immunity

Antibodies are ______. a. antigen receptors b. made only by B cells c. proteins d. all of the above

Antibody-mediated responses work against ______. a. intracellular pathogens b. extracellular pathogens c. cancerous cells d. both a and b e. both b and \(c\) f. \(a, b,\) and \(c\)

Cell-mediated responses work against _______. a. intracellular pathogens b. extracellular pathogens c. cancerous cells d. both a and b e. both a and \(c\) f. \(a, b,\) and \(c\)

_______ are targets of cytotoxic T cells. a. Extracellular virus particles in blood b. Virus-infected body cells or tumor cells c. Parasitic flukes in the liver d. Bacterial cells in pus e. Pollen grains in nasal mucus

Allergies occur when the body responds to _______. a. pathogens b. toxins c. normally harmless substances d. all of the above

Match the immune cell with the best description. ______ mast cell ______ eosinophil ______ helper T cell _____ NK cell ______ dendritic cell a. antigen-presenter b. targets parasitic worms c. activates cytotoxic T cells d. kills body cells with no MHC markers e. factor in allergic reactions