Sinus Surgery 3D Animation | Sinusitis Treatment | Sinus Operation

SINUSES. Four pairs of air-filled cavities called paranasal sinuses sit within the facial bones of the skull. They are lined with cells that produce mucus, which flows into the nasal passageways through very small openings. The roles of the sinuses are to lighten the heavy skull bones and to improve the resonance of the voice by acting as an echo chamber. Their effectiveness becomes obvious during a cold, when the small openings into the nose become blocked, giving a nasal quality to the voice. Sinusitis may be acute—clearing up within 12 weeks, or chronic, lasting for over 12 weeks. Acute sinusitis is most common and typically follows a cold. Symptoms include headache, facial pain, facial pressure when bending Location of sinuses. There are four pairs of sinuses, which drain through small channels. These channels may become blocked when inflamed, leading to a buildup of fluid and a sensation of pressure. forward, a discharge of pus from the nose, and fever. Sinus Surgical