…This nerve is the thickest of the cranial nerves, and enters a part of the brainstem called the pons. Just before the pons is a collection of nerve cells that give off the trigeminal nerve, the trigeminal ganglion (semilunar ganglion, Gasser's ganglion). One of the processes from each nerve cell here enters the pons, and the other is distributed to the periphery. The processes toward the pons are all grouped together into one thick nerve trunk, but the processes toward the periphery are grouped together into three large nerves near the trigeminal ganglion. … *Some of the terminology that refers to "Gasser's ganglion" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…この神経は脳神経のなかでは最も太く,脳幹の〈橋(きよう)〉とよばれる部分へ入る。この橋のすぐ手前のところには,三叉神経を出す神経細胞の集合体,すなわち三叉神経節(半月神経節,ガッセルの神経節)があり,ここにある各神経細胞から出る突起のうち1本が橋に入り,他の1本が末梢のほうへ分布しているのである。橋に向かうほうの突起は全体として太い1本の神経幹にまとまっているが,末梢のほうへ向かう突起は,三叉神経節の近くでは,大きく3本の神経にまとまっている。… ※「ガッセルの神経節」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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