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<big> '''What are the gross defence system in the upper respiratory?'''
<big> '''What are the gross defence system in the upper respiratory?'''
<font color="white"> '''''The mucocilliary escalator''''' </font></big>
<font color="white"> '''''
#The mucocilliary escalator
#Particle deposition
#Mucociliary escalator
#Mucus
#Commensal bacteria
#Reflexes''''' </font></big>
[[Diseases of the nasal cavity and sinuses#Defence mechanisms|Link to Answer Article]]
[[Diseases of the nasal cavity and sinuses#Defence mechanisms|Link to Answer Article]]