Immunity

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