Which anatomic term refers to the air-filled cavities located in some bones of the face and cranium?

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The term that refers to the air-filled cavities located in some bones of the face and cranium is paranasal sinuses. These structures are found around the nasal cavity and include several specific sinuses, such as the frontal, maxillary, ethmoidal, and sphenoidal sinuses. Their primary functions include reducing the weight of the skull, allowing for voice resonance, and aiding in the humidification and warming of inhaled air.

While the frontal sinuses and maxillary sinuses are specific types of paranasal sinuses, the broader term "paranasal sinuses" encompasses all of them. Cranial fossa, on the other hand, refers to the depressions in the skull that house the brain and is not related to the air-filled cavities. Therefore, the most accurate answer, capturing the complete group of air-filled chambers associated with the nasal cavity, is paranasal sinuses.

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