(b) Complete the following passage, using the most appropriate term(s) in each case.
When an impulse is not passing along a neurone, a resting potential of mV is
established. When the neurone is stimulated, it causes

of
the cell surface membrane. This will not generate an action potential unless it is large enough
to exceed the
A neurone will either conduct an action potential or not; this is described as the
- -
law.
The only way in which the
Action potentials all have the same
intensity of a stimulus can be interpreted is by the
of the
action potential