人视神经筛板的发育和结构研究──光镜观察  

A Study on the Development and Structure of the Human Optic Nerve Lamina Cribrosa by Light Microscopy

作　　者：李建军[1] 张希兰[1] 杨济芳[1] 孙芳娥[1] 刘英奇[1] 

机构地区：[1]河北医学院附属三院眼科

出　　处：《眼科研究》1996年第1期25-27,共3页Chinese Ophthalmic Research

摘　　要：应用光镜组织学技术研究了人视神经筛板的发育和结构。主要结果如下；胚胎期巩膜筛板发育初步分三个阶段：（1）原始筛板期；（2）巩膜筛板形成期;（3）发育进展期。巩膜筛板是神经胶质与结缔组织相结合而形成，其发育是一个终生过程，而脉络膜筛板始终保留神经外胚叶成分。足月胎儿巩膜筛板梁结缔组织成分与成人差异较大。结缔组织纤维绕筛孔相互交织呈切线状走行。The development and structure of the human optic nerve lamina cribrosa was studied by light microscopy. The results showed as follows:The embryological development of scleral lamina cribrosa might bedivided into three stages: 1) primitive stage, 2) formative stage and 3) progressive stage. Neuroglia and connective tissue united to form the scleral lamina cribrosa and its development was a lifelong course. The choriodal lamina cribrosa remained as ectodermal elements throughout life. In the mature fetus, the connective tissue trabeculae of scleral lamina cribrosa differed from that in the adult. The skeins of connective fibers in thetrabeculae interwove and usually arranged tangentially around the canals through which optic nerve axonspass.

关 键 词：视神经筛板 胚胎发育 组织学 

分 类 号：R329.1[医药卫生—人体解剖和组织胚胎学]