Immune system
Across
- 2. membranes serve as a barrier to pathogens.
- 4. usually invades helper T cells.
- 7. response is a series of events that suppress infection and speed recovery.
- 11. causes local blood vessels to dilate, increasing blood flow to the area.
- 12. label invaders for later destruction by macrophages.
- 13. cells activate antibody production against that pathogen.
Down
- 1. consists of cells and tissues found throughout the body.
- 3. ingest and kill pathogens they encounter.
- 5. resistance to a particular disease
- 6. nonspecific defense.
- 8. is a white blood cell that engulfs and destroys pathogens.
- 9. is a disease causing agent.
- 10. is the body’s inappropriate response to a normally harmless antigen.