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Home Q & A Board Biology-Related Homework Help Medicine Immunology
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Flognog Flognog
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6 years ago
What is the collective purpose of nasal hair, mucus secretions in the naspopharyngeal tract,
  phagocytic cells in the throat, bronchial lysozyme, sneezing, and coughing?
 
  A) To keep normal flora in the oropharynx from entering the eustachian tube causing
  infection.
  B) To keep normal flora in the oropharynx from causing infection.
  C) To maintain a sterile environment in the oropharynx.
  D) To keep organisms from entering the lower respiratory tract and causing infection.
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yujenni16yujenni16
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6 years ago
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Flognog Author
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6 years ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
SUmmerPeople
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Yesterday
Helped a lot
bkrandy
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2 hours ago
Correct Slight Smile TY
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