Tips

The mucous blanket
o The nasal cavity produces 1 to 2 L of mucus per day.
o Mucus is highly acidic (pH- 6.0) and contains:
-Water
-1-2%salts
– 2-3% glycoproteins
-Immunoglobulins
o Mter secretion, mucus forms a bilayer consisting of a thicker, more viscous
gel layer on the surface. This overlies the more serous sol layer.
o Mucus is swept from posterior to cmterior by cilia toward the nasal
vestibule.