Across
- 4. protein molecules that act as messengers between cells
- 7. a type of cell that functions as an antigen presenting cell
- 8. an organism that carries a pathogenic organism from one host to another
- 11. Immunity by encountering the pathogen for the first time
- 15. Type of immune response everyone is born with
- 16. an individual that is a host to a pathogen, does not experience symptoms but can transmit infection
- 17. oval shaped structure located along the length of the lymph vessels
- 18. the process induced by natural killer cells to eradicate tumours or virus-infected cells
- 19. a foreign substance that stimulates the formation of specific antibodies
Down
- 1. the property of immunity allowing the body to respond faster and stronger upon second encounter
- 2. assist phagocytes in recognising the presence of pathogens
- 3. increase in the body's thermoregulatory set-point
- 5. molecule released from the MAST cell causing inflammation
- 6. a disease causing cellular or non-cellular agent
- 9. immune response involving the production of antibodies
- 10. the B cells that secrete antibodies into the bloodstream
- 12. treatment given to fight viral infections
- 13. the line of defence that is non-specific but internal
- 14. the type of barrier in your tears or saliva
- 20. site of maturation for T cells