Consisting of the paired nasal bones and the ascending frontal process of the maxilla, the vault acts as a cantilever, supporting the upper nose and the upper lateral cartilages. 骨性穹隆由一對鼻骨和上頜骨額突構成，好似一個支架，支撐著鼻上部和上外側軟骨。
A transition zone of bony thickness exists along the frontal processes of the maxilla from the piriform aperture to the radix along the lateral nasal wall. 在上頜骨額突從梨狀孔向鼻根沿鼻腔外側壁走行過程中存在著一骨厚度移行區。
