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. 骨性穹隆由一对鼻骨和上颌骨额突构成，好似一个支架，支撑着鼻上部和上外侧软骨。
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. 在上颌骨额突从梨状孔向鼻根沿鼻腔外侧壁走行过程中存在着一骨厚度移行区。
