Changes

<big> '''What is the main anatomical 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''''' </font></big>

[[Alimentary - includes liver and pancreas|Link to Answer Article]]

[[Diseases of the nasal cavity and sinuses#Defence mechanisms|Link to Answer Article]]