…In the spinal nerve region, sensory ganglia are found in the middle of the dorsal root, a little closer to the center than where the anterior and posterior roots unite to form the spinal nerve. Therefore, there is one sensory ganglion for each spinal nerve, and these are called spinal ganglions or dorsal root ganglions. Sensory ganglia are a collection of cell bodies of neurons that send afferent nerve fibers to the central nervous system, so even in the cranial nerve region, there are sensory ganglia in the cranial nerves that contain afferent nerve fibers. … *Some of the terminology that mentions "dorsal root ganglion" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…感覚神経節は,脊髄神経の領域では,前根と後根が合一して脊髄神経が形成されるところよりも,少々中枢側で後根の途中に存在する。したがって,それぞれの脊髄神経に対応して1個の感覚神経節があり,これらを脊髄神経節spinal ganglionまたは後根神経節dorsal root ganglionという。感覚神経節は求心性神経繊維を中枢神経系に送るニューロンの細胞体の集合であるから,脳神経の領域でも求心性神経繊維を含む脳神経にも感覚神経節がある。… ※「dorsal root ganglion」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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