抄録
First, the hamster nasal turbinates were nominated as nasoturbinate, maxil-loturbinate, endoturbinates I, II, II", III and IV, and ectoturbinates 1, 2 and 3. Next, inorder to clarify the course of their development, animals from 11.0 days of gestation to149 days after birth were examined. As a result, nasoturbinate, maxilloturbinate, andendoturbinates I, II and III had already been formed by 11.0 days of gestation. Endo-turbinate II" appeared at 12.0 days, endoturbinate IV and ectoturbinate l at 12.5 days, and ectoturbinates 2 and 3 at 13.0 days. Endoturbinate IV and ectoturbinate 2 developedin the form of epithelial ridge, and ectoturbinates l and 3 in the form of subepithelialmesenchymal ridge. Endoturbinate II" was formed secondarily from endoturbinate II byseparation. Further, the course of development of each nasal turbinate was schematicallysummarized. The surface area of each nasal turbinate was measured in various growthstages. Based on these embryological findings, discussion was made on the nomenclatureof the nasal turbinates.
