法国鹌鹑个体发育过程中松果体的比较组织学研究

The study of the pineal body of Coturnix coturnix france during development

本文应用组织学和生物统计学方法对法国鹌鹑松果体的发育过程做了观察比较。结果表明:鹌鹑胚胎孵化到72小时左右,在间脑背部长出松果体原基凸起;5天胚期,松果体发育成与第三脑室相通的指囊状结构;7天胚期,在指囊状结构的周围分化出许多小腺泡,松果体的体积不断增大;11天胚期,松果体囊腔与第三脑室分隔开,囊泡不断增多;13天胚期,松果体分化出由多腺泡构成的头部和结缔组织构成的柄部;出壳后,松果体的体积与形状变化不明显;成体时,松果体发育成含有极少量小腺泡腔的实质型结构。本文是对鹌鹑松果体发育过程的首次研究,确定了鹌鹑松果体形态在种系发生中的位置。

This thesis presents the process of the develoment of the Dineal body in the coturnix coturnix france with the methods of common histology and Biology statis- tics. The results are as follows: when anembryo of the quail has developed for about 72 hours, a protruding growth on the back of the prosencephlon-pineal prototype ap- peared. On the fifth day, it bacame a pineal body of a finger structrue which was inter- linked with the third ventricle. On the seventh day, many small gland vesicles differenri- ated from the finger structrue. The volume of the pineal bokdy bicame larger and larger. On the eleventh day, its pocket cavities were oeperated from the third ventricte, and the number of the small gland vesicles increased. On the thir-teenth day, the pineal body differentiated a head which was composed of the gland vesicles and a stalk which was composed of connective tissues. On lhe fifteenrth day, besides its volume increasing, its pocket cavities became winding, thin and short. The connective tissue networks were formed between the gland vesicles. Aftesr hatching. the dimensional change of the pineal body was not obvious. The pineal body in adulthood became something similar to its es- sential slruclure, ie.: there were a few gland vesicles. This thesis presenrs the first study of the development process of the pindy body of the quail, and defines the pineal body's place in the animal kingdom.