Which of the following regarding neurons and the action potential is correct?
A)In myelinated axons,sodium channels are distributed evenly.
B)Influx of K⁺ ions leads to a brief hyperpolarization of the cell membrane.
C)The resting membrane potential is approximately -50 mV.
D)Sodium ions that enter an axon through sodium channels in a given axonal region diffuse further along the axon,depolarizing the next axonal region.

Question

Quizplus · Accepted Answer

This is known as saltatory conduction and is facilitated by the myelin sheath. Influx of Na⁺ ions leads to depolarization of the cell membrane, not hyperpolarization. The resting membrane potential is approximately -70 mV, not -50 mV.

Which of the Following Regarding Neurons and the Action Potential