Why the membrane potential between the axon hillock and the

Why the membrane potential between the axon hillock and the axon either changed or not changed with subthreshold

Solution

Membrane potential does not change. Depolarization of the membrane is caused by sub-threshold stimulus. However, the magnitude of the depolarization is small, hence it does not reach the threshold voltage. So, action potentials are not elicited by sub-threshold stimuli.