The maxillary processes extend in a cephalad direction form the piriform aperture to the lacrimal crest, uniting with the frontal and nasalbones.
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
The nasalbones average 2.5cm in length, are much thicker and denser above the level of the medial canthus at the radix, and thin progressively toward the tip.