这个词是什么意思？
Air-filled spaces located within the bones around the NASAL CAVITY. They are extensions of the nasal cavity and lined by the ciliated NASAL MUCOSA. Each sinus is named for the cranial bone in which it is located, such as the ETHMOID SINUS; the FRONTAL SINUS; the MAXILLARY SINUS; and the SPHENOID SINUS.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D010256 · MeSH 2026。
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