Across
- 1. Type of barrier like skin that blocks entry to the body
- 2. proteins in the blood that can break bacteria apart
- 4. A sac connected to the lymphatic vessels that filters liquid
- 5. fluid draining through lymphatic vessels
- 8. A cell type that produces antibodies
- 11. An abdominal organ that filters out old cells and pathogens.
- 12. the part of a bone that produces and stores blood cells
- 15. An innate cell that crawls out of blood vessels
- 17. A messenger molecule secreted by immune cells
- 18. A part of a pathogen that can be recognized by a B cell or T cell
Down
- 1. Patrolling immune cell that eats debris and pathogens
- 3. a chest organ that trains T cells.
- 6. A cell type that eats debris and pathogens
- 7. An immune cell with arms that can grab antigens and show them to other cells.
- 9. The first immune response
- 10. A protein that can recognize a specific part of a pathogen
- 12. A type of cell that is stored in the body to help respond to pathogens seen again
- 13. The immune response that is specific
- 14. A bacteria, virus, or fungus that can harm the body
- 15. An innate cell that can kill other cells
- 16. A method of creating active immunity to a pathogen without getting infected