Chapter 18 VOCABULARY Immune System Function, Data Collection, and Therapeutic Measures 87 Fill in the blank. . Antigens are chemical markers that identify cells or molecules. 2. Immunity is the ability to destroy pathogens or other foreign material and to prevent further cases of certain infectious diseases. 3. 13 cell 1 - cell lymphocytes. and I cells Wic cells are the three types of 4 . 5. Antibodies mature in the thymus gland. ate also called antibodies. 6. Cell meal a Community is the type of immunity that involves only T cells. immunity is the type of immu- nity in which a person has recovered from a disease and now has antibodies and memory cells specific for that pathogen. 8. refers to the decline in the immune system, especially as usually seen in older adults. 9. Lymph node enlargement with tenderness is usually indicative of 10. The and infection. of a white blood cell differential are increased in bacterial infections. IMMUNE SYSTEM CELLS Match each cell of the immune system with the correct description. 1. Memory cells 1. Phagocytize pathogens labeled with antibodies GOD ATAG 2. Helper T cells 2. Produce antibodies 3. Cytotoxic T cells 3. Limit the immune response once the pathogen 4. Plasma cells has been destroyed 5. Suppressor T cells 4. Initiate a rapid immune response if the pathogen 6. Macrophages reenters the body 7. B cells 5. Destroy cells directly by lysing their membranes ender 6. May become plasma cells or memory cells 7. Participate in antigen recognition and activate Bous anoilinne ANTIBODIES Name the proper class of antibodies for each of these functions. 3 wody 1. Found in mucous membrane secretions 2. Provides long-term immunity 3. Forms the receptors on B cells 4. Important in allergic reactions 5. Crosses the placenta to fetal circulation 6. Found in breast milk 7. The first antibody produced in an infection