A neuron's initial,internal response to an incoming signal can vary in size.The ultimate,external response of the cell,however,does not vary in size.If the signal is sent,it is always of the same magnitude.This effect is called the

Question

Quizplus · Accepted Answer

The all-or-none law states that once a signal exceeds the threshold potential, the neuron fires with a constant and maximal strength. This means that the initial, internal response of the neuron to an incoming signal may vary, but the external response of the cell (i.e. firing an action potential) does not vary in size.

A Neuron's Initial,internal Response to an Incoming Signal Can Vary