The relative refractory period of an axon coincides with the period of A)Activation and inactivation of voltage-dependent Na⁺ channels B)Increased Na⁺ flux into the cell C)Increased K⁺ flux into the cell D)Increased K⁺ flux out of the cell E)Increased Na⁺ flux out of the cell

Question

Quizplus · Accepted Answer

The relative refractory period coincides with the period of increased K⁺ flux out of the cell, as voltage-gated K⁺ channels remain open, making it more difficult to depolarize the neuron to threshold.

The Relative Refractory Period of an Axon Coincides with the Period