RETINO-TECTAL STRUCTURE IN ZEBRAFISH( BRACHYDANIO RERIO)
- VernacularTitle:斑马鱼视网膜-顶盖系统的组织学研究
- Author:
Shengxiang ZHANG
;
He LI
;
Ziren WANG
- Publication Type:Journal Article
- Keywords:
Optic nerve;
Tectum;
Retina;
Histology;
Zebrafish
- From:
Acta Anatomica Sinica
1953;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the histological structures of retinotectal system in zebrafish. Methods The structures of tectum and retina were examined histologically and the total number and diameter of the optic nerve fibers were studied quantitatively. Results The retina includes 10 layers, and the tectum is differentiated into 6 layers. The mean thickness of the tectum is about 219\^7?8\^3?m. The optic nerve of zebrafish has approximately 78?960 myelinated fibers. The mean of the outer diameter (D) of the myelinated fibers was 0\^50?0\^18?m, while the mean of the inner diameter (d) is 0\^35?0\^14?m. Virtually all axons within optic nerves are myelinated.Conclusion\ The results not only accord with the typical pattern of retina and tectum in vertebrates, but also reflect the characteristic of diurnal activity and good vision in zebrafish.\;[
