Study of embryonic development and histological structure of the eye in white mouse Mus musculus | ||
| Journal of Education and Science | ||
| Article 6, Volume 20, Issue 1, September 2007, Pages 54-69 PDF (1.1 M) | ||
| DOI: 10.33899/edusj.2007.162950 | ||
| Authors | ||
| Hani M Hammodi; Raghed A Abbas | ||
| Abstract | ||
| The present study aims to investigate the morphological, anatomical and histological eye development of the swiss albino mice mus musculus. The eye development initiated at early stage of pregnancy and continued and represented for twelve stages, each stage per one day. At full term delivery, the eye was closed and incomplete in differentjation. The first signal of optic vesicle primordium appeared in the first stage at th day of pregnancy and continued with enlargement in the second stage. The optic vesicles was invaginated, at the 3 rd stage to form the optic cup. At the same time, the lens primordium (Lens placodes) appeared. In the 4th stage, the two layers of optic cup differentiated and the lens disc involuted to form, The lens vesicle the first retinal signal appeared at the 5th stage were ganglion cells. At the 6th stage, several features appeared which include bruche 's· membrane, choroid fissure, optic nerve primordium and spherical lens with lens fiber. Then inner plexiform layer of the retina differentiated at the th stage. The choroid and scleral tunics as well as the retinal nerve fiber layer appeared at the gth stage. The cornea and iris primordia as well as the pigment epithelial cells of the retina appeared at the 9th stage. At the 1oth stage the optic nerve emerged from the ventral side of the eye ball. The distinct features of the 11th stage were the appearance of the outer neural retina as syncitiallayer with the differentiation of inner nerve fiber layers. On the other hand, the eye chambers, and the differentiation of inner nuclear retinal layer and the outer plexiform layer were developed at the last stage. | ||
| Keywords | ||
| embryonic development; Mus musculus; Optic nerve | ||
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