Which of the following statements regarding neurons and the action potential is NOT true? A) efflux of K⁺ ions leads to a brief hyperpolarization of the cell membrane B) the resting membrane potential is approximately −80mV C) sodium ions that enter an axon through sodium channels in a given axonal region diffuse further along the axon, depolarizing the next axonal region D) in myelinated axons, sodium channels are distributed evenly E) all of the above are true

Question

Quizplus · Accepted Answer

In myelinated axons, sodium channels are not distributed evenly. They are concentrated at the nodes of Ranvier, the gaps in myelin sheath where the action potential is regenerated.

Which of the Following Statements Regarding Neurons and the Action