The mineral necessary for nervous conduction is

The potential difference in the membrane,which is responsible for the conduction of an impulse,is brought about by a change in the membrane:

What happens during depolarization of the nerve membrane?

Which of the following statements is/are correct?
$(a)$ The electrical potential difference across the resting plasma membrane is called the resting potential.
$(b)$ $Na^+$ ions are responsible for the generation of an action potential.
$(c)$ $A$ nerve impulse is an action potential.

The resting potential of the membrane is

Conduction of an impulse along the axon is associated with the