Immune System
Across
- 2. eosinphils,neutrophils,macrophages, and dendritic cells
- 5. mostly water containing electrolytes (ions), dissolved gases, nutrients, and proteins
- 6. involved in defending the body against invaders
- 9. targets and destroys non-discriminatively
- 10. tightly packed to prevent entry of many pathogens
- 13. interrupt internal signaling and/or enzymatic action
- 15. blinking spreads tears and washes surface of the eye
- 16. creates an environment unfavorable to other microorganism
- 17. increase the number and kinds of binding sites on pathogens
Down
- 1. leave the blood and mature into macrophage
- 3. lymphocytes;b cells and t cells
- 4. collagen fibers help skin resist abrasions
- 7. shedding of dead skin cells removes microorganism
- 8. phagocytize pathogens
- 11. cells,chemicals, and processes
- 12. secrete toxins that weaken or kill the helminth
- 14. skin and mucous membranes are physical barriers and produce defensive chemicals.