Question

During the relative refractory period, _______. a. a second action potential cannot be generated, no matter how strong the stimulus. b. the flow of potassium is also depolarizing the neuron. c. another action potential can be generated provided the stimulus is large enough. d. another action potential can be generated provided the stimulus is relatively smaller than the original stimulus.

Answer 1

Answer:  c. another action potential can be generated provided the stimulus is large enough.

Explanation:

Refractory period - (1) absolute refractory period and (2) Relative refractory period .

Relative refractory period -It is the interval immediately following the Absolute Refractory period during this period, initiation of a second action potential is inhibited but not impossible.  It is the period shortly after the firing of a nerve fiber when partial repolarization has occurred and only a greater than normal stimulus can stimulate a new response.