Action potential is a temporary localized reversal of the polarity of the neurolemma, which occurs when neurolemma is stimulated (e.g.electric shock, touch, sound, vibrations etc). During the action potential, the polarity of neurolemma first changes to +40mv (i.e.depolarization) and then restores to -65mv again (i.e. repolarization) This action is extremly rapid as it occurs only in a few milliseconds. to happen. Hence, option B is correct.STB- Pg 67.
Action potential is a temporary localized reversal of the polarity of the neurolemma, which occurs when neurolemma is stimulated (e.g.electric shock, touch, sound, vibrations etc). During the action potential, the polarity of neurolemma first changes to +40mv (i.e.depolarization) and then restores to -65mv again (i.e. repolarization) This action is extremly rapid as it occurs only in a few milliseconds. to happen. Hence, option B is correct.STB- Pg 67.