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Home Q & A Board Biology-Related Homework Help Cell Biology
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tapey1996 tapey1996
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8 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 organisms from entering the lower respiratory tract and causing infection.
B) To keep normal flora in the oropharynx from entering the eustachian tube causing infection.
C) To keep normal flora in the oropharynx from causing infection.
D) To maintain a sterile environment in the oropharynx.
Textbook 
Clinical Laboratory Immunology

Clinical Laboratory Immunology


Edition: 1st
Authors:
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de5ietde5iet
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8 years ago
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tapey1996 Author
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8 years ago
Right to the point, thank you so much.
Hi!
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8 years ago
Welcome Wink Face
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