The Nose
 Know your nose
 Functions of the nose
 Nasal Dysfunctions
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The nose is a very important organ of the human body and the first portion of the respiratory tract. It comprises the main passageway for air into and out of the lungs. It separates into two hollow nostrils that open up into the nasal cavity. The nasal cavities are covered by a protective membrane called the nasal mucosa the functions of which are essential for respiration.

The nose:
• filters, warms and moisturizes daily more than 10.000 cubic meter of inhaled air, before it passes
   towards the lower respiratory tract, the sinuses and the middle ear;
• produces mucous which protects the body by trapping foreign particles such as bacteria, viruses,
   allergens, dust, etc;
• releases antibodies to combat infection and allergens.
The nose is thus the first line of defense against many air-borne pathogens.