5 Written Questions

1. phagocytize invading bacteria and viruses
2. determines the class of immunoglobulin
3. produce lymphokines which influence immune response
   (increase production of anitbodies by B lymph, production and activity of cytotoxic T cells, serve as chemotaxin to lure neutrophils and monocytes to infected tissue, target AIDs virus
4. mirror image of the antigen
5. direct administration of immunoglobulins (temporary)
   a. placental transfer
   b. colostrum
   c. clinical administration

5 Matching Questions

1. vasodilation of arterioles
2. physial hindrance
3. B lymphocytes (antibody-mediated immunity)
4. external barriers (non-specific immune response)
5. chemotaxins

1. a kinins and cytokines
2. b skin, digestive tract, respiratory tract, genitourinary tract
3. c diverts blood flow to infected tissue
   1)histamine
   2)kinins-inactive plasma proteins activated by infection
4. d a. neutralization
   b. agglutination/precepitation
5. e antigen causes correct "clone" of cells to multiply, as the # increase they become plasma cells and memory cells

5 Multiple Choice Questions

1. group of inactive globulins in blood, infection activates the complement cascade of 11 proteins, increases inflammation, phagocytosis and causes lysis of bacteria via "attack complex"
   1. T lymphocytes
   2. complement system
   3. memory cells
   4. helper T cells
2. important in viral infection, bacterial infection, cancer and foreign tissue rejection, directly contacts infected cells, antigen causes clones to multiply, derived from B lymphocytes which are transformed in the thymus gland
   1. plasma cells
   2. antibodies
   3. T lymphocytes
   4. macrophages
3. acidity of stomach, endogenous bacteria in colon
   1. digestive tract
   2. respiratory tract
   3. passive immunity
   4. genitourinary tract
4. acidity of urine, acidic vaginal environment
   1. respiratory tract
   2. digestive tract
   3. genitourinary tract
   4. memory cells
5. basis for rapid response to secondary infections
   1. helper T cells
   2. memory T cells
   3. memory cells
   4. suppressor T cells

5 True/False Questions

1. natural killer cells → basis for rapid response to secondary infections

   True        False

2. antibody → increases some non-specific immune responses
   a. activates the complement cascade
   b. increases phagocytosis

   True        False

3. inflammation → virally-infected cells produce this protein and secrete it into the extracellular fluid

   True        False

4. interferon → complex molecule which triggers the formation of an antibody

   True        False

5. skin → physical barrier, lysozymes in sweat

   True        False