初孵扬子鳄中脑视叶组织学结构观察  

THE HISTOLOGIC STUDY OF THE OPTIC LOBE IN NEW-HATCHING ALLIGATOR SINENSIS

作　　者：刘再群[1] 孙庆艳[1] 李堃[1] 王海涛[1] 华田苗[1] 陈冬生[1] 

机构地区：[1]安徽师范大学生命科学学院,安徽芜湖241000

出　　处：《安徽师范大学学报（自然科学版）》2002年第4期368-370,共3页Journal of Anhui Normal University(Natural Science)

基　　金：安徽师范大学青年基金(NO.125031);安徽省自然科学基金(NO.98241716)

摘　　要：用光镜对扬子鳄中脑视叶的组织学结构进行了研究.从背侧到腹侧,扬子鳄中脑视叶可分顶盖和被盖两部分,二者之间无明显界线,细胞排布有所区别.从外侧到内侧,顶盖可分为带状层、外灰质层、浅白质层、中灰质层、中白质层、深灰质层、深白质层和中央灰质.被盖前部分层与顶盖相同,中后部分层不明显.神经细胞主要在灰质内,白质中零星分布一些小细胞.视叶室的形状由前向后不同.同时对扬子鳄中脑视叶同其他脊椎动物的进行了比较讨论.The histologic structure of optic lobe in newhatching A.Sinesis was studied by microscope. From dorsal to ventral, the optic lobe can be divided into two parts: tectum and tegmentum, there is no distinct boundary between them, but the cell organization of them is different. From lateral to medial, tectum include eight layers: stratum zonale, outer gray layer or stratum cinereum, superficial white layer or stratum opticum, middle gray layer, middle white layer, deep gray layer, deep white layer and central gray substance. The anterior of tegmentum organization is same as tectum, but the middle and posterior of tegmentum organization is different from tectum. Neurocytes lie mostly in gray layers, there are a few small cells scatter in stratum zonale, out white layer, middle white layer and deep white layer. The shape of optic lobe ventriculus is different from the anterior to the posterior of optic lobe. The characters of optic lobe in A. Sinensis were discussed and were compared with other vertebrate animals.

关 键 词：中脑 视叶 组织学结构 初孵扬子鳄 脊椎动物 顶盖 被盖 神经细胞 

分 类 号：Q959.64[生物学—动物学] Q954