Sinus ostium
| Sinus ostium | |
|---|---|
| Details | |
| Latin | Sinus ostium (plural: sinus ostia) |
A sinus ostium is the opening that connects a sinus to the nasal cavity itself. It is a tight area that tends to have a higher percentage of cilia than the surrounding mucosa.
If the sinus ostium is blocked this will cause an accumulation of fluid in the sinus.
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