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。
2
The maxillary processes extend in a cephalad direction form the piriform aperture to the lacrimal crest, uniting with the frontal and nasal bones.
上颌骨额突由梨状孔和泪嵴向头侧方向伸出，与额骨和鼻骨相接。
3
These are most frequently seen in the frontal and parietal bones with the orbital and maxillofacial bones infrequently involved.