… They can also distinguish between approaching and receding prey by the difference in the echoes. From the ears…On the other hand, endolymph has a sodium and potassium ion concentration similar to that of intracellular fluid, and is contained in a closed cavity in the temporal bone. It is secreted by dark cells in the stria vascularis of the cochlea and the semicircular canals of the vestibule, and absorption is thought to occur mainly in the endolymphatic sac. (1) Cochlea The cochlea is literally snail-shell shaped, and in humans it is wound about 2.7 times (Figure 3). In the center is the modiolus, which contains the cochlear nerve and the blood vessels of the inner ear. … *Some of the terminology that mentions "cochlea" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…また,接近してくる餌と遠ざかる餌とをこだまの違いで区別できる。【立田 栄光】 【耳】より…一方,内リンパは細胞内液に近いナトリウム・カリウムイオン濃度をもち,側頭骨内にある閉鎖した腔に入っており,蝸牛の血管条,前庭半規管では暗細胞によって分泌され,吸収は主として内リンパ囊で行われると考えられている。(1)蝸牛 蝸牛cochleaは文字どおりカタツムリの殻状をしており,ヒトでは2.7回転ほど巻いている(図3)。中心には蝸牛軸があり,蝸牛神経,内耳血管を含む。… ※「cochlea」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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