菜花原矛头蝮嗅觉系统和犁鼻系统的显微结构  

The microstructure of olfactory and vomeronasal systems in snake,Protobothrops jerdonii

作　　者：王宏元[1] 柴丽红[2] 王晓雯[1] 李忻怡[1] 

机构地区：[1]陕西师范大学生命科学学院,陕西西安710062 [2]长安大学环境工程学院,陕西西安710054

出　　处：《陕西师范大学学报（自然科学版）》2011年第1期62-65,共4页Journal of Shaanxi Normal University：Natural Science Edition

基　　金：陕西省自然科学基础研究计划项目(SJ08C101);中央高校基本科研业务费专项资金项目(GK200902039)

摘　　要：采用组织学方法观察了菜花原矛头蝮(Protobothrops jerdonii)的嗅觉系统和犁鼻系统.结果表明,嗅器位于嗅囊的背侧,犁鼻器则位于嗅器的腹内侧.嗅器的上皮分化为嗅上皮和呼吸上皮,嗅上皮的基底层有Bowman′s腺,呼吸上皮中具有大量的杯状细胞.犁鼻器基底层未发现犁鼻腺.嗅球和副嗅球呈典型的板层构筑结构.推测菜花原矛头蝮嗅器内嗅上皮和呼吸上皮完全分开有利于背侧嗅上皮俘获气味信号,腹侧呼吸上皮参与呼吸作用.虽然菜花原矛头蝮等蛇类的犁鼻器缺少犁鼻腺,但是其眼眶周围的哈氏腺和口腔内的唾液腺可以代偿犁鼻腺机能.The olfactory organ and vomeronasal system in snake,Protobothrops jerdonii,were investigated under the microscope.The results showed that the olfactory organ lies in the dorsal and the vomeronasal organ is in the ventral portion of the nose cavity.The epithelium of the olfactory cavity is divided into the two segments： olfactory epithelium and respiratory epithelium.Bowman′s gland in the olfactory epithelium is present and goblets cells occur in the respiratory epithelium.Vomeronasal gland is not found in the vomeronasal organ.The olfactory bulb and accessory olfactory bulb are typical laminar pattern.Subdivision of dorsal olfactory epithelium and ventral respiratory epithelium in snake may be beneficial to that the olfactory epithelium capture odour and respiratory epithelium take party into the respiratory.In addition,the vomeronasal organ in snake lacks vomeronasal glands,but the harderian gland and the salivary glands compensate lack of the vomeronasal gland.

关 键 词：菜花原矛头蝮 嗅器 犁鼻器 嗅球 副嗅球 

分 类 号：Q954[生物学—动物学]