Across
- 3. Additional dose to maintain immunity
- 5. First line of defense like skin or mucous membranes
- 9. Organ that produces and releases substances
- 11. Type of white blood cell that becomes a macrophage
- 12. Immunity gained from another source
- 14. Disease-causing organism
- 15. Main lymphatic duct
- 16. Immune response against the body’s own cells
- 18. First responders to microbial infection
- 20. First immune response to an antigen
- 21. Protein that inhibits virus replication
- 23. First physical barrier against infection
- 26. The liquid portion of blood
- 27. Balance Role of lymphatic system in regulating body fluids
- 31. Activates B cells and killer T cells
- 35. Immune response that targets specific pathogens
- 36. Virus that causes AIDS
- 40. Disease caused by HIV attacking immune system
- 42. Protein that signals other immune cells
- 43. Lymphoid tissues in the throat that help fight infection
- 44. Site of blood cell production
- 45. Leading out of a lymph node
- 47. Milky lymph from the intestines
- 49. Another name for an antibody
- 52. A clear fluid that circulates through the lymphatic system
- 53. Response to injury or infection
- 55. Removal of particles from fluid
- 57. The body's ability to resist infection
- 59. Vessels that transport lymph throughout the body
- 60. Overreaction of the immune system to harmless substances
Down
- 1. Non-specific defense mechanisms
- 2. Group of proteins that enhance immune response
- 4. Drains lymph from right upper body
- 6. Swelling caused by fluid buildup in tissues
- 7. Injection that stimulates immunity
- 8. Single-celled organism that can cause infection
- 10. General term for immune system cell
- 11. Remembers pathogens for faster future response
- 13. Destroys infected or cancerous cells
- 17. Microscopic infectious agent that replicates inside cells
- 19. White blood cell involved in cell-mediated immunity
- 20. Cell that secretes large volumes of antibodies
- 22. Faster response to previously encountered antigen
- 24. Small structures that filter lymph and store white blood cells
- 25. Slows down immune response
- 28. Cancer of the lymphatic system
- 29. Cell that engulfs and digests pathogens
- 30. Immunity developed after exposure to antigen
- 32. Leading into a lymph node
- 33. Organ that filters blood and helps fight bacteria
- 34. Lymph vessel in the small intestine
- 37. Substance used to stimulate the production of antibodies
- 38. Protein that helps destroy pathogens
- 39. Large white blood cell that engulfs pathogens
- 41. Chemical released during allergic reactions
- 46. A type of white blood cell found in the lymph
- 48. Substance that triggers an immune response
- 49. Study of the immune system
- 50. White blood cell that produces antibodies
- 51. Lymphatic function that removes excess tissue fluid
- 54. Sticky substance that traps pathogens
- 56. Gland where T cells mature
- 58. Natural killer cell that destroys infected or cancerous cells