A neuron typically reaches threshold for an action potential when it is depolarized by at least _________mV.
A) 1 to 2
B) 2 to 5
C) 5 to 10
D) 10 to 12

Question

Quizplus · Accepted Answer

A neuron typically reaches threshold for an action potential when it is depolarized by 5 to 10 mV. This depolarization allows for the opening of voltage-gated ion channels in the neuron's membrane, which allows for the influx of positively charged ions and the initiation of an action potential. Choices A, B, and D are too low or too high to reach the threshold for an action potential.

A Neuron Typically Reaches Threshold for an Action Potential When