Is SINUSITIS affecting your QUALITY of life? By Dr M Khan (ENT)

Sinuses are air pockets that are located in the skull and drain into the nasal cavities. We have four pairs of sinuses on either side: frontal, ethmoid, sphenoid and maxillary sinuses. Air constantly exchanges between the nose and sinuses.

The nasal cavities and sinuses are lined by respiratory mucosa. In the healthy state the mucosa is thin and pink. Normal, healthy mucosa produces mucous constantly that is thin and watery. The mucous secretions help to keep the nasal passages moist and trap dirt particles. The mucous is moved by tiny, microscopic hair like structures called cilia. Mucous flows from the sinuses through channels into the nasal cavities, to the back of the nose and then down the throat.

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