Action potential is also termed as

What is the resting membrane potential of a neuron (in millivolts)?

During the refractory period,the nerve fiber:

The conduction of nerve impulse is a

$A$: Presence of myelin sheath increases the rate of conduction of nerve impulse.
$R$: Ionic channels are absent in the area covered by myelin sheath; therefore,depolarization occurs only at the nodes of Ranvier,resulting in saltatory or jumping conduction.

When a nerve fibre is stimulated,the inside of the membrane becomes: