…the eyeball can rotate smoothly in all directions with the aid of the six extraocular muscles attached via their tendons. Behind the sclera, the optic nerve and central retinal artery and vein pass through the lamina cribrosa, which is made up of the inner sclera. The short ciliary arteries to the choroid pass around the optic nerve, while the long ciliary arteries pass through the sclera anteriorly near the limbus (where the sclera merges into the cornea). Veins from the uvea (vortex veins) also pass through the sclera near the equator. … *Some of the terminology that mentions "lamina cribrosa" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…このため,腱を介して付着する6本の外眼筋の作用によって,眼球は滑らかに各方向に回転することができる。強膜の後方では,視神経と網膜中心動静脈が,内側強膜からなる篩状板lamina cribrosaを貫き,脈絡膜への短毛様動脈が視神経の周囲で,また前方では,長毛様動脈が角膜輪部(強膜が角膜へ移行する部分)近くで強膜を貫く。ぶどう膜からの静脈(渦静脈)も赤道部付近を貫く。… ※「lamina cribrosa」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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