翻訳と辞書 Words near each other ・ Cervical cancer staging ・ Cervical cap ・ Cervical cerclage ・ Cervical collar ・ Cervical conization ・ Cervical dilation ・ Cervical dislocation ・ Cervical ectropion ・ Cervical effacement ・ Cervical enlargement ・ Cervical fascia ・ Cervical fracture ・ Cervical ganglia ・ Cervical incompetence ・ Cervical intraepithelial neoplasia ・ Cervical loop ・ Cervical lymph nodes ・ Cervical lymphadenopathy ・ Cervical margins ・ Cervical motion tenderness ・ Cervical mucus method ・ Cervical mucus plug ・ Cervical part of internal carotid artery ・ Cervical pessary ・ Cervical plexus ・ Cervical polyp ・ Cervical pregnancy ・ Cervical rib ・ Cervical screening ・ Cervical sinus Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Cervical loop ： ウィキペディア英語版 Cervical loop The cervical loop is the location on an enamel organ in a developing tooth where the outer enamel epithelium and the inner enamel epithelium join. The cervical loop is a histologic term indicating a specific epithelial structure at the apical side of the tooth germ, consisting of loosely aggregated stellate reticulum in the center surrounded by stratum intermedium. These tissues are enveloped by a basal layer of epithelium known on the outside of the tooth as outer enamel epithelium and on the inside as inner enamel epithelium. During root formation the inner layers of epithelium disappear and only the basal layers are left creating Hertwig's Epithelial Root Sheath (HERS). At this point it is usually referred to as HERS instead of the cervical loop to indicate the structural difference. ==Cervical loop as epithelial stem cell niche== It is thought that the central epithelial tissue of the cervical loop, the stellate reticulum, acts as a stem cell reservoir. In continuously growing teeth such as the rodent incisor the original structure of the cervical loop is maintained and no HERS forms. The stem cells provide the epithelial progeny to sustain the continuous growth. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cervical loop」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.