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Paranasal sinuses are filled with air Their function is to-humidify and warm the inspired air,provide resonance to voice,lighten the skull bones, andact as thermal insulatorsâ¦ to protect orbit and cranium from variation in temperature of air in our nose Paranasal sinuses are air containing cavities (hollow spaces) in certain bones of skull.
Size: 58 Views: 3. Paranasal sinuses are diverticula of the ___ located within ___ of the skull. nasal cavity, bones. During development, enlargement of the ___ with in the bone hollows out the bone creating inner and outer __ of bone. bone, tables.