1) Class II MHC molecules are found on which of thefollowing?
liver cells and macrophages in the spleen
granulocytes and microphages
red blood cells
lymphocytes and antigen-presenting cells
all body cells with a nucleus
2) Histamine increases blood flow and vascularpermeability. This would account for all of the following changesthat occur during inflammation except
heat of the inflamed tissue.
swelling of the inflamed tissue.
movement of defense proteins and cells into the interstitialspace.
chemotaxis of phagocytes.
redness of the inflamed tissue.
3) Which of the following is not a secondary lymphoidtissue or organ?
spleen
tonsils
MALT
lymph nodes
thymus
3) All of the following are true of the primary responseof humoral immunity except that
circulating antibodies undergo a gradual, sustained rise.
it depends on memory B cells.
it requires B cell differentiation into plasma cells.
it depends on antigen triggering the appropriate B cell.
it peaks 1 to 2 weeks after the initial exposure.
4) The following are steps in the cell-mediated immuneresponse. What is the correct sequence for thesesteps?
1. Several cycles of mitosis occur.
2. Antigen is engulfed and presented by a macrophage.
3. Cytotoxic T cells migrate to focus of infection.
4. T cells with specific receptors recognize the antigen.
5. T cells differentiate into cytotoxic T cells or T memorycells.
6. Cytotoxic T cells release perforin and/or lymphotoxin.
