… A cell called a neuron has three distinct parts: (1) a cell body (soma) that surrounds the nucleus, (2) dendrites (dendritic projections) that carry impulses toward the cell body, and (3) a single axon (although it has many branches) that sends impulses away from the cell body. When a neuron generates a spike in the body, an impulse is first generated at the beginning of the axon (the axon hillock). … *Some of the terminology explanations that mention "dendrites" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
… ニューロンと呼ばれる細胞には三つの部分が区別される。すなわち,(1)核を取り囲む細胞体soma,(2)興奮を細胞体のほうへ伝える樹状突起dendrites,(3)興奮を細胞体から送り出す1本の軸索axon(ただし,分枝は多い)である。生体内でニューロンがスパイクを発生するときには,まず軸索の起始部(軸索小丘axon‐hillock)のところからインパルスが形成される。… ※「dendrites」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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