…When excited, the polarity of the inside and outside of the membrane is reversed, and the inside of the cell becomes a positive potential of about 30 to 40 mV. This potential change recovers within a few m/s, so it is called the spike potential, and is distinguished from the afterpotential, which is a slow change seen during the recovery period. This potential change induces a local current, which allows the excitation to be conducted without attenuation. … *Some of the terminology that mentions "spike potential" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…興奮時には膜内外の極性が逆転し,細胞内が30~40mV程度正の電位となる。この電位変化は数m/s程度の時間内に回復するのでスパイク電位spike potentialと呼ばれ,回復期にみられる遅い変化である後電位after potentialと区別される。この電位変化に伴って局所電流が誘起され,これにより興奮が減衰することなく伝導される。… ※「spike potential」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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