Prenatal Development of the Nostril in Rabbit (Orycmtolagus cuniculus)

Saleh ALomaisi, H. El-Ghazali, Hamed Nosseur, S. E. Ahmed, M. Konsowa
{"title":"Prenatal Development of the Nostril in Rabbit (Orycmtolagus cuniculus)","authors":"Saleh ALomaisi, H. El-Ghazali, Hamed Nosseur, S. E. Ahmed, M. Konsowa","doi":"10.21608/JVA.2018.44909","DOIUrl":null,"url":null,"abstract":"This work aimed to throw more lights on beginning time of the first appear- ance and origin as well developmental vicissitudes of rabbit's nostril. This work was carried out on 116 rabbit embryos and fetuses of both sexes. The specimens were obtained, from 14 normal and apparently healthy adult female rabbit. At days (D) 11 there was a cleared invagination on the thickened epithelium of the nasal placode as a nasal pit. The latter had an oval in outline at 12 D and it formed the nasal sac. At 13 D the nasal sac had given rise to the primitive nasal cavity. Its external opening will differentiate to form the primitive nostril, occluded by nasal plug. At 14 D the lining epithelium of the lateral nasal wall was of variable thickness of stratified cuboidal type of epithelium. At 16 D there were a clear some cellular apoptosis in center of nasal plug. At 18-20 D the center of the nasal plug was dissoluted and the nostril was begun to canalize. At 22 D the nostril was lined by keratinized stratified squamous epithelium especially at the rostral part of nasal vestibule and the nasal vestibule was lined by thick keratinized stratified squamous epithelium. At 30 D the nostrils appeared as oblique slit like opening similar to that of newly born rabbit.","PeriodicalId":437076,"journal":{"name":"Journal of Veterinary Anatomy","volume":"21 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Veterinary Anatomy","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.21608/JVA.2018.44909","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2

Abstract

This work aimed to throw more lights on beginning time of the first appear- ance and origin as well developmental vicissitudes of rabbit's nostril. This work was carried out on 116 rabbit embryos and fetuses of both sexes. The specimens were obtained, from 14 normal and apparently healthy adult female rabbit. At days (D) 11 there was a cleared invagination on the thickened epithelium of the nasal placode as a nasal pit. The latter had an oval in outline at 12 D and it formed the nasal sac. At 13 D the nasal sac had given rise to the primitive nasal cavity. Its external opening will differentiate to form the primitive nostril, occluded by nasal plug. At 14 D the lining epithelium of the lateral nasal wall was of variable thickness of stratified cuboidal type of epithelium. At 16 D there were a clear some cellular apoptosis in center of nasal plug. At 18-20 D the center of the nasal plug was dissoluted and the nostril was begun to canalize. At 22 D the nostril was lined by keratinized stratified squamous epithelium especially at the rostral part of nasal vestibule and the nasal vestibule was lined by thick keratinized stratified squamous epithelium. At 30 D the nostrils appeared as oblique slit like opening similar to that of newly born rabbit.
兔(Orycmtolagus cuuniculus)鼻孔的产前发育
本研究旨在进一步了解兔鼻孔初次出现的时间、起源以及发育的变迁。这项工作是在116个兔子胚胎和两性胎儿上进行的。标本取自14只正常和表面健康的成年母兔。在第11天(D),在增厚的鼻基板上皮上可见明显的内凹,呈鼻坑状。后者在12d处轮廓呈椭圆形,形成鼻囊。13 D时,鼻囊发育为原始鼻腔。其外部开口分化形成原始鼻孔,被鼻塞堵塞。14 D时,鼻侧壁上皮呈变厚的层状立方型上皮。16 D时,鼻塞中心可见明显的细胞凋亡。18 ~ 20d,鼻塞中心溶解,鼻孔开始通管。22 D时,鼻前庭吻侧的鼻孔内排列有角质化层状鳞状上皮,鼻前庭内排列有厚的角质化层状鳞状上皮。30 D时,鼻孔呈斜缝状张开,与新生兔相似。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信