immune system

1. response - a complex series of events that invlves many chemicals and immune cells that hep enhance the overall immune response
6. Cells - long living cells that are exposed to the antigen during the primary immune response
7. proteins - enhance phagocytosis by helping the phagocytic cells bind better to pathogens and activating the phagocytes
8. - blood cells that ingest bacteria and remove dead neutophils and other debris
14. Organs - The organs of the hymphatic system contain lymphatic tissue, lymphocytes, a few other cell types, and connective tissue
16. Cells - located in all lymphatic tissues and can be thought of as antibody factories
17. - virus infected cells secrete a protein
18. Barrier - the first major line of defense is the unbroken skin and its secretions
19. - a type of white blood cell that is produced in red bone marrow
20. T Cells - destroy pathogens and release chemicals called cytokines
21. Defense - if foreign microorganisms enter the body, the cells of the immune system defend the body

2. - blood cells that produce antibodies and other chemicals
3. - blood cells that ingest bacteria
4. - secreted by many inner surfaces of the body
5. System - includes organs and cells that filter lymph and blood, destroy foreign microorganisms, and absorb fat
9. - proteins produced by B lymphocytes that specifically react with a foreign antigen
10. - like strong walls of a fort, barriers are used by the body to protect against pathogens
11. T Cell - the processed antigen on its surface, binds to a type of lymphocyte
12. - called vaccinations
13. Barriers - Saliva, tears, and nasal secretions contain the enzyme lysozyme
15. Acid - secreted in your stomach