Assertion: skull's cavity | /r/Synonym | paranasal sinuses
Facets:
Source sentences:
text: The skull also contains sinuses, air-filled cavities known as paranasal sinuses, and numerous foramina.
text: The skull may also be divided into a calvarium that is robust and surrounds and protects the brain and a facial skeleton that is more delicate, composed mostly of thin-walled bones, some of which house air-filled cavities known as the paranasal sinuses.
text: The skull also contains sinuses, air-filled cavities known as paranasal sinuses, and numerous foramina.