Across
- 2. found in all tissues, engulf pathogens, travel to lymph nodes to activate T cells
- 5. Occurs when individual receives another person’s antibodies
- 6. Occurs when individual creates their own immunity
- 9. capability of removing/killing pathogens, foreign substances & cancer cells
- 11. tiny close-ended vessels that are found throughout body & take up excess interstitial fluid
- 12. form a one way system that carries lymph
- 13. T cells mature & learn to recognize combinations of self-molecules & foreign molecules
- 15. where lymphocytes develop & mature (______ lymphoid organs)
- 16. Contains mostly red pulp that filters & cleanses blood
- 17. cytokines that affect the behavior of other cells
- 19. fluid inside the capillaries & vessels
- 20. Recognize & respond to antigens presented by various types of cells
- 21. large lymphocytes that kill virus-infected cells & cancer cells
Down
- 1. use of vaccines to achieve immunity
- 3. “Acquired Immunity”
- 4. Where all blood cells are produced including lymphocytes
- 7. fully functional immunity without previous exposure to invaders
- 8. receptor protein in plasma membrane allowing cells to combine with antigen
- 10. Recognize & respond to antigens only presented by specialized antigen-presenting cells
- 14. Long living & great in numbers so when the same antigen is presented again, immune response is rapid
- 18. where some lymphocytes are activated by antigens (______ lymphoid organs)