翻訳と辞書 Words near each other ・ Area News Group ・ Area of a disk ・ Area of archaeological potential ・ Area of Critical Environmental Concern ・ Area of Critical Environmental Concern (Massachusetts) ・ Area of freedom, security and justice ・ Area of Great Landscape Value ・ Area of Natural and Scientific Interest ・ Area of operations ・ Area of Outstanding Natural Beauty ・ Area of Poland ・ Area of refuge ・ Area of responsibility ・ Area of special scientific interest ・ Area Police/Private Security Liaison ・ Area postrema ・ AREA Property Partners ・ Area Q ・ Area redevelopment plan ・ Area rule ・ Area school ・ AREA Science Park ・ Area source (pollution) ・ Area studies ・ Area Study Center for Europe ・ Area Support Unit Chilliwack ・ Area theorem ・ Area theorem (conformal mapping) ・ Area under the curve (pharmacokinetics) ・ Area yield options contract 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 Area postrema ： ウィキペディア英語版 Area postrema The area postrema is a medullary structure in the brain that controls vomiting. Its privileged location in the brain also allows the area postrema to play a vital role in the control of autonomic functions by the central nervous system. ==Anatomy== The area postrema is a small protuberance found at the inferoposterior limit of the fourth ventricle. Specialized ependymal cells are found within the area postrema. These specialized ependymal cells differ slightly from the majority of ependymal cells (ependymocytes), forming a unicellular epithelium lining of the ventricles and central canal. The area postrema is separated from the vagal triangle by the funiculus separans, a thin semitransparent ridge. The vagal triangle overlies the dorsal vagal nucleus and is situated on the caudal end of the rhomboid fossa or 'floor' of the fourth ventricle. The area postrema is situated just before the obex, the inferior apex of the caudal ventricular floor. Both the funiculus separans and area postrema have a similar thick ependyma-containing tanycyte covering. Ependyma and tanycytes can participate in transport of neurochemicals into and out of the cerebrospinal fluid from its cells or adjacent neurons, glia or vessels. Ependyma and tanycytes may also participate in chemoreception. The eminence of the area postrema is considered a circumventricular organ because its endothelial cells do not contain tight junctions, which allows for free exchange of molecules between blood and brain tissue. This unique breakdown in the blood–brain barrier is partially compensated for by the presence of a tanycyte barrier. 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「Area postrema」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.