What Are the Functions of a Sinus Cavity?
Your sinus cavity works hard to keep your body free of germs and irritants such as pollen, pet dander and dust. It contains a finely tuned system of mucosal cells and cilia that secrete liquid and transport foreign invaders out of the body.
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Identification
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The sinus cavity is divided into the nasal cavity, which is within the pronounced area of the nose, mouth and throat, and the paranasal sinuses that are located throughout the skull. The American Cancer Society explains that the nasal cavity separates the nose from the mouth.
The Four Sets
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Sinuswars.com explains that there are four different sets of paranasal sinus cavities that drain mucus and facilitate air flow. The ethmoid sinuses are located between the eyes, the frontal sinuses in the area of the forehead, the sphenoid behind the eyes, and the maxillary sinuses are in the cheekbones area.
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Nasal Cavity Function
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According to Intranasal.net, the main function of the nasal cavity is to filter, heat and humidify the air that is inhaled. Another important function of the nasal cavity is to aid in sense of smell.
Paranasal Cavity Function
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The paranasal cavity serves several important purposes, according to Kellogg Community College of Battle Creek, Mich. The paranasal cavity provides humans with their unique vocal vibrations (resonances), provides the bony framework or structure of the face and helps to lighten the weight of the skull.
Sinusitis
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The function of the sinus cavity can be compromised by an infection known as sinusitis. According to Dr. Grossan's Ear, Nose and Throat Consultant Pages, sinusitis describes any type of irritation or swelling that is directly related to the sinuses. Cilia (hair-like structures) located within the sinus cavity are responsible for expelling irritants. When illness prevents this, infection can set in. Sinusitis usually runs it course with rest and relaxation, but correct functioning may need to be restored with a round of antibiotics.
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References
Resources
- Photo Credit Image by Flickr.com, courtesy of Kate Weber
