[Home]History of Paranasal Sinus

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Revision 3 . . (edit) October 22, 2001 12:40 am by RoseParks
Revision 2 . . October 21, 2001 11:55 pm by (logged).159.166.xxx
Revision 1 . . October 21, 2001 11:51 pm by (logged).159.166.xxx [Definition and introduction]
  
Difference (from prior major revision) (minor diff, author diff)

Changed: 3c3
the fronal sinuses, over the eyes, in the bone of the forehead
the frontal sinuses, over the eyes, in the bone of the forehead

Changed: 10c10
The paranasal sinuses are joined to the nasal cavity via small orifices called ostia. These become blocked relatively easily by allergic inflammation, or by swelling in the nasal lining which occurs with a cold. If this happens, normal drainage of mucus within the sinuses is disrupted, and sinusitis may occur.
The paranasal sinuses are joined to the nasal cavity via small orifices called ostia. These become blocked relatively easily by allergic inflammation, or by swelling in the nasal lining which occurs with a cold. If this happens, normal drainage of mucus within the sinuses is disrupted, and sinusitis may occur.
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