翻訳と辞書
Words near each other
・ Juwi
・ Juwon Oshaniwa
・ Juwono Sudarsono
・ Juxia
・ Juxkopf
・ Juxon
・ Juxon baronets
・ Juxon Street
・ Juxta
・ Juxtacapillary (J) receptors
・ Juxtacrine signalling
・ Juxtaglomerular apparatus
・ Juxtaglomerular cell
・ Juxtaglomerular cell tumor
・ Juxtamedullary nephron
Juxtaoral organ of Chievitz
・ Juxtapose
・ Juxtapose (album)
・ Juxtaposed controls
・ Juxtaposition
・ Juxtaposition Arts
・ Juxtaposition Magazine
・ Juxtapoz
・ Juxtapozed with U
・ Juxtarctia
・ Juxtarctia multiguttata
・ Juxtarestiform body
・ Juxtastenopus
・ Juxtaxanthias
・ Juxtephria


Dictionary Lists
翻訳と辞書 辞書検索 [ 開発暫定版 ]
スポンサード リンク

Juxtaoral organ of Chievitz : ウィキペディア英語版
Juxtaoral organ of Chievitz

The Juxtaoral organ in humans is a small longish structure (10–14 mm in length, 1–2 mm in diameter), situated laterally of the buccal muscle in both cheeks. The organ consists of a central ramified cord of an epithelial parenchyma, embedded in connective tissue particularly rich in nerve fibers and sensory receptors. Close relations exist between epthelial cells and nerve endings. Histochemically, the parenchyma displays a characteristic pattern of various enzymes. Sporadically, epithelial follicles containing colloidal material can be found. The organ is surrounded by a dense, perineurium-like connective tissue.
Originally, the formation was known to embryologists only ("Chievitz Organ") and was considered to be a transient rudimentary structure, disappearing before birth. In 1953, Wolfgang Zenker proved that the formation shows further development and can be found in adult humans with regularity. Since then quite a number of studies have been performed on its comparative anatomy, histology, cytochemistry and on ultrastructural level. As soon as this structure had been shown to occur not only at all stages of human life but also in many other mammals and in reptiles and since no signs of involution could be detected in any of the species investigated, it was renamed – from a topographical point of view – as "Juxtaoral organ" by Zenker and Salzer 1962.
The results of the studies of Zenker and his group on this organ as well as the history of research are summarised in the monograph ''Juxtaoral Organ: Morphology and Clinical aspects'', Urban&Schwarzenberg 1982.〔Wolfgang Zenker: ''Juxtaoral Organ: Morphology and Clinical Aspects'', Urban & Schwarzenberg Baltimore-Munich 1982〕
It can very rarely be the site of a tumor. It was first noted in embryos by Johan Henrik Chievitz in 1885.〔
== References ==


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「Juxtaoral organ of Chievitz」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.