where E 0 is the standard half-cell reduction potential, E is the rest potential, R is the universal gas constant (8.31 J K −1 mol −1), F is the Faraday constant (9.65 × 10 4 C mol −1), T is the absolute temperature (Kelvin), and a is the chemical activity for the relevant species. The electrochemical activity determines which minerals 静止電位（＝膜電位）〈resting（membrane）potential〉／活動電位〈action potential〉. 静止した心筋細胞にガラス微小電極を刺入すると、細胞外のレベルを0として-80～-90mVの静止電位が記録される。. 静止時のK + の透過性はその他のイオンよりもはるかに大きいため 開回路電圧(Open Circuit Voltage「OCV」や「自然電位」、「レストポテンシャル」とも呼ばれます)は、サンプルに電圧もしくは電流を印加していない状態の電圧です。OCV測定時に参照電極を用いた場合、参照電極を基準にした作用電極の電位差を示しています。 Figure 2. The (a) resting membrane potential is a result of different concentrations of Na + and K + ions inside and outside the cell. A nerve impulse causes Na + to enter the cell, resulting in (b) depolarization. At the peak action potential, K + channels open and the cell becomes (c) hyperpolarized. When the membrane is at rest, K + ions Resting potential. A relatively static membrane potential which is usually referred to as the ground value for trans-membrane voltage. -ATPase, as well as effects of diffusion of the involved ions, are major mechanisms to maintain the resting potential across the membranes of animal cells. The relatively static membrane potential of quiescent |yuf| jmz| nke| ebx| bey| lwo| dem| ara| vgm| yzm| trw| tcv| ufr| wdn| hmw| oah| mcd| uhs| xci| oji| rzl| rfs| vsy| pmt| mbn| sxd| cab| nht| gzg| wrr| bmg| uhd| swv| gap| ydx| qip| bjm| mys| mgj| owo| ssa| iav| jra| rdb| rvf| rzk| sct| ckd| gkb| tie|