myelin sheath

Japanese: myelin sheath(英語表記)myelinsheath
myelin sheath

…Axons are generally long projections (such as those that reach from the spinal cord to the extremities, or from the cerebral cortex to the extremities of the spinal cord), and are therefore often called nerve fibers. Axons are often covered with a sheath (myelin sheath) that is mainly composed of phospholipids. Axons that are covered with a myelin sheath are called myelinated fibers, and axons that do not have a myelin sheath are called unmyelinated fibers. …

*Some of the terminology that mentions "myelin sheath" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…軸索は一般に長い突起であるから(脊髄から四肢の末端部にまで達するもの,大脳皮質から脊髄の末端部にまで達するものなど),神経繊維nerve fiberと呼ばれることが多い。また,軸索はしばしばリン脂質を主成分とする鞘(しよう)(髄鞘またはミエリン鞘myelin sheath)をかぶっている。髄鞘をかぶっている軸索を有髄繊維(有髄神経繊維),髄鞘をもたない軸索を無髄繊維(無髄神経繊維)と呼ぶ。…

※「myelin sheath」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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