Chapter 21 Review Questions Flashcards
(33 cards)
Which of the following cells is phagocytic?
macrophage
Which structure allows lymph from the lower right limb to enter the bloodstream?
thoracic duct
Which of the following cells is important in the innate immune response?
macrophages
Which of the following cells would be most active in early, antiviral immune responses the first time one is exposed to pathogen?
natural killer cell
Which of the lymphoid nodules is most likely to see food antigens first?
tonsils
Which of the following signs is not characteristic of inflammation?
cold
Which of the following is not important in the antiviral innate immune response?
microphages
Enhanced phagocytosis of a cell by the binding of a specific protein is called ________.
opsonization
Which of the following leads to the redness of inflammation?
increased blood flow
T cells that secrete cytokines that help antibody responses are called ________.
Th2
The taking in of antigen and digesting it for later presentation is called ________.
antigen processing
Why is clonal expansion so important?
to increase the numbers of specific cells
The elimination of self-reactive thymocytes is called ________.
negative selection.
Which type of T cell is most effective against viruses?
cytotoxic T cells
Removing functionality from a B cell without killing it is called ________.
IgG
Which class of antibody has no known function other than as an antigen receptor?
IgD
When does class switching occur?
primary response
Which class of antibody is found in mucus?
IgA
Which enzymes in macrophages are important for clearing intracellular bacteria?
lysosomal
What type of chronic lung disease is caused by a Mycobacterium?
tuberculosis
Which type of immune response is most directly effective against bacteria?
complement
What is the reason that you have to be immunized with a new influenza vaccine each year?
mutation
Which type of immune response works in concert with cytotoxic T cells against virally infected cells?
natural killer cells
Which type of hypersensitivity involves soluble antigen-antibody complexes?
type III
