What is the function of the paranasal sinuses?

Updated: Mar 01, 2018
  • Author: Itzhak Brook, MD, MSc; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

The exact function of the paranasal sinuses is not well understood. The possible roles of the sinuses may include reducing the weight of the skull; dampening pressure; humidifying and warming inspired air; absorbing heat and insulating the brain; aiding in sound resonance; providing mechanical rigidity; and increasing the olfactory surface area.


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