Choose the Correct Option for Immune System Flashcards

1. Which of the following is NOT a first line of immune defense in the human body? a. antibody b. normal bacterial flora c. skin d. tears

6. Eosinophils phagocytose which of the following? a. bacteria b. virus c. debris d. parasite

10. Which of the following regarding immune function is least likely to occur with aging? a. decreased production of specific antibodies b. increase in circulation antigen-antibody complexes c. increase in circulating autoantibodies d. increase in circulating memory B cells

16. Which of the following is not an example of a type II hypersensitivity reaction? a. transfusion reaction b. autoimmune hemolytic anemia c. tuberculin skin test d. grave’s disease

17. Which of the following is not an example of a type IV hypersensitivity reaction? a. graft rejection b. tumor rejection c. contact allergic reactions d. systemic lupus erythematosus

20. If a person had very low levels of Ig __, he or she may be more susceptible to infections of mucous membranes. a. Ig A b. Ig D c. Ig G d. Ig M

21. When a person is exposed to most antigens, how long does it take before an antibody can be detected in the circulation? a. 24 hours b. 36 hours c. 3 days d. 6 days

22. Why are some viruses, e.g. herpes, inaccessible to the antibodies after the initial infection? a. these viruses do not have the receptor for specific antibodies on their cell membranes b. these viruses are soluble antigens c. these viruses are resistant to the opsonization d. these viruses do not circulate in the blood, they are inside the infected cells

26. Major histocompatibility complex (MHC) molecules are located on the surface of all body cells except which of the following cells? a. erythrocytes b. lymphocytes c. myelocytes d. monocytes

27. Which of the following immunoglobulins is present in blood, saliva, breast milk, and respiratory secretions? a. Ig A b. Ig E c. Ig G d. Ig M

30. Which of the following refers to the monocyte-macrophage cell system? a. hageman factor system b. complement pathway system c. reticuloendothelial system d. opsonization system

33. When looking at the white blood cells differentials from a lab test, acute inflammatory reactions are suggested when there are elevations of which of the following leukocytes? a. macrophages b. eosinophils c. basophils d neutrophils (MC194)

34. Which of the following refers to any molecule that can stimulate a specific immune response against the cell that carries it or against itself? a. antibody b. opsonin c. activator d. antigen

37. Which of the following immunoglobulins is most likely to be detected first during the primary immune response? a. Ig A b. Ig D c. Ig E d. Ig M

39. Which of the following manifestations of inflammation is systemic? a. fever and edema b. fever and leukocytosis c. redness and swelling d. formation of exudates