Across
- 5. Big phagocytes that present antigens
- 7. System including lymph nodes and spleen
- 8. Study of the immune system
- 11. Cells that engulf pathogens
- 12. Non-specific immunity category
- 13. Lymphocytes that kill virus-infected cells.
- 15. Proteins that block viral replication
- 16. Required to help acitvate helper T-cells
- 18. Lymphocytes that kill infected cells
- 19. Mediator of allergic inflammation
- 20. Most abundant phagocytic WBCs
Down
- 1. Signaling proteins in the immune system
- 2. Movement of WBCs toward chemicals
- 3. Protein system that lyses pathogens
- 4. Proteins that neutralize pathogens
- 6. Molecules recognized by adaptive immunity
- 9. Organisms that cause diseas
- 10. WBCs that target parasites
- 11. Cells that secrete antibodies
- 14. When an antigen causes deadly systemic symptoms such as severe hypotension and bronchoconstriction
- 15. Superfamily of proteins that include antibodies and B-cell receptors
- 17. Eosinophils attack these