Across
- 4. The smallest blood vessel
- 6. hairs that act as a physical barrier
- 8. word for a weakened strain of pathogen in a vaccine
- 9. The number of components in blood
- 10. When a specific antibody fits a specific antigen
- 12. helps with secondary immune response
- 13. a physical barrier against infection(slimy)
- 15. bacterial cell wall
- 16. The formal word for red blood cells
Down
- 1. contains all cells and dissolved substances
- 2. A type of antibody produced in response to biological toxins
- 3. gland in which WBCs stored in
- 5. Action when a phagocyte engulfs a pathogen
- 7. contain digestive enzymes
- 11. the largest vein in the body
- 14. The shape of a phagocyte's nucleus