_Y_+9
_IMG_48_13ActionPotGenerat1.jpg
<span class="RED">Resting state.</span><br>
Most <b>Na<sup>+</sup></b> and <b>K<sup>+</sup></b> channels are closed;
some <b>K<sup>+</sup></b> channels are open.<br>
The membrane's <span class="RED">resting potential</span> is maintained.