A member asked:

What are the openings to the sinuses called? im confused between the meatuses and the ostium. please explain what each does and where they are.

A doctor has provided 1 answer
Dr. James Burns answered

Specializes in Emergency Medicine

A meatus is the : opening to a passage leading into the body whereas an ostium is an opening leading to a cavity, hence the sinus ostia.

Answered 5/12/2019

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