Krmpotić-Nemanić J, Padovan I, Vinter I, Jalsovec D
Croatian Academy of Sciences and Arts, Zagreb, Croatia.
Ann Anat. 1998 Dec;180(6):555-9. doi: 10.1016/S0940-9602(98)80065-4.
The development of the cribriform plate and lamina mediana was studied in macerated isolated ethmoid bones in specimens from late fetal life to the stage of its final shape (60 specimens). From fetal life to the first year of age, the ethmoid bone consisted of two separate symmetrical halves which had joined together by the end of the first year. Each half of the future ethmoid bone incorporated the superior, middle and occasionally also the supreme nasal concha. The ossification of the cribriform plate started in the new-born where it initially displayed a vertical position but became horizontal in the course of the first year. At the end of the first year both halves of the ethmoid bone had been united by the formation of the crista galli, lamina mediana and complete ossification of the cribriform plate. The lamina mediana reached its final shape by ten years of age. Each half of the ethmoid bone displayed furrows for the fila olfactoria in the region of the superior and occasionally also of the anterior part of the middle nasal concha. The furrows run in a postero-anterior direction. In the course of our investigations we found three cases where all three nasal conchae formed a unique block thus proving the common origin of these structures from the cartilaginous nasal capsule.
在60个标本中，对从胎儿晚期到最终形态阶段的浸软分离筛骨标本的筛板和中板发育进行了研究。从胎儿期到1岁，筛骨由两个独立的对称部分组成，在1岁末时合并在一起。未来筛骨的每一半都包含上鼻甲、中鼻甲，偶尔还包括最上鼻甲。筛板的骨化始于新生儿期，最初呈垂直位置，但在第一年的过程中变为水平。在1岁末，筛骨的两半通过鸡冠、中板的形成以及筛板的完全骨化而联合在一起。中板在10岁时达到最终形态。筛骨的每一半在中鼻甲上部区域以及偶尔在前部区域都有嗅丝沟。这些沟呈后向前方向延伸。在我们的研究过程中，我们发现了3例所有三个鼻甲形成一个独特块的情况，从而证明了这些结构起源于软骨性鼻囊。
