Across
- 2. overreaction to an allergen antigen
- 5. clear fluid; in lymphatic vessels
- 8. "killer" T Cell attaches to some antigen bearing cells and destroys directly
- 9. vessel caries lymph into node
- 11. body invader; bacteria, virus, fungi
- 12. antigen-binding; produced by plasma B cells; fights many pathogen
- 14. vessel caries lymph away from node
- 15. where blood vessels enter node
- 18. gland; lower neck region; T cell maturation
- 19. vessel vessel; transports lymph
- 20. T Cell/B Cell saves antigen shape; multiplies readily when antigen is present again; lasts a lifetime
Down
- 1. defense cells; mature in bone marrow
- 2. defense precise; lymphocytes; antigen/antibody
- 3. defense broad, nonspecific defense; mechanical barriers, chemical barriers, fever, inflammation, phagocytosis
- 4. antigen (but not whole pathogen) is introduced creating memory cells
- 6. cell WBC; produces antibodies
- 7. WBC; makes antibodies
- 9. lymphocytes recognize self antigens as pathogen antigens
- 10. protein in cell wall; marker/sign
- 13. contamination by pathogen
- 15. T Cell creates cytokines that activates T and B cells
- 16. large; behind stomach; produces lymphocytes, filters the blood, stores blood cells, destroys old blood cells
- 17. defense cells; mature in thymus