Across
- 2. Along with mucus, trap and remove microbes and dust from upper respiratory tract.
- 5. Expels microbes from body.
- 6. Traps microbes in respiratory and gastrointestinal tracts.
- 8. Filter out microbes and dust in nose.
- 9. Washes microbes from urethra.
- 10. Forms a protective acidic film over the skin surface that inhibits growth of many microbes.
Down
- 1. Destroys bacteria and most toxins in stomach.
- 3. Antimicrobial substance in perspiration, tears, saliva, nasal secretions, and tissue fluids.
- 4. Washes microbes from surfaces of teeth and mucous membranes of mouth.
- 7. Physical barrier to the entrance of microbes.