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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Vorticose veins ： ウィキペディア英語版 Vorticose veins The vorticose veins, referred to clinically as the vortex veins, drain the ocular choroid. The number of vortex veins is known to vary from 4 to 8 with about 65% of the normal population having 4 or 5.〔Kutoglu, T., Yalcin, B., Kocabiyik, N. and Ozan, H. (2005), Vortex veins: Anatomic investigations on human eyes. Clinical Anatomy, 18: 269–273. 〕 In most cases, there is at least one vortex vein in each quadrant. Typically, the entrances to the vortex veins in the outer layer of the choroid (lamina vasculosa) can be observed funduscopically and provide an important clinical landmarks identifying the ocular equator. However, the veins run posteriorly in the sclera exiting the eye well posterior to the equator. Some vortex veins drain into the superior orbital veins and thence to the cavernous sinus. Some vortex veins drain into the inferior orbital vein which drains into the pterygoid plexus. There is usually collateral circulation between the superior and inferior orbital veins. ==Additional images== File:Sobo 1909 744.png|The blood-vessles of the eyeball (diagrammatic). 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「Vorticose veins」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.