If a particular drug blocked the sodium channels on an axon, the neuron
A)would open the potassium channels
B)would continue to depolarize
C)would not generate an action potential
D)quickly reach the refractory period
E)lose the myelin sheath

Question

Quizplus · Accepted Answer

Blocking sodium channels prevents sodium ions from entering the neuron during depolarization, which is necessary for generating an action potential. Without the influx of sodium ions, the neuron cannot depolarize to the threshold needed to initiate an action potential.

If a Particular Drug Blocked the Sodium Channels on an Axon