AIR-FILLED SKULL CAVITY Crossword Clue
AIR-FILLED SKULL CAVITY Crossword Clue
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Crossword Puzzle Infos
The term AIR-FILLED SKULL CAVITY is referring to the sinuses, which are air-filled cavities in the skull. The sinuses are lined with mucous membranes and are connected to the nasal passages. They help to humidify and filter the air that is breathed in, as well as providing resonance to the voice.