The skull contains a number of air-filled spaces called sinuses. They perform the following functions:
Four pairs of sinuses, known as the paranasal air sinuses, connect to the nasal passages (the two airways running through the nose) and are those that are involved in sinusitis. These sinuses are the following:
There is no cure for the common cold, or so we've been told. But a recent study led by Sheldon... Read more »
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(Ivanhoe Newswire) -- A new study finds the survival rates for children with hematological cancers have improved over the past decades. The study... Read summary »
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