The _______ is the voltage level at which an action potential is triggered in a patch of axon membrane.
A) resting membrane potential
B) hyperpolarization event
C) threshold of excitation
D) rate level
E) refractory period

Question

Quizplus · Accepted Answer

The threshold of excitation is the voltage level at which an action potential is triggered in a patch of axon membrane. It is the point at which depolarization reaches a certain level and opens enough sodium channels to trigger an action potential. The resting membrane potential is the membrane potential of a neuron when it is at rest, the hyperpolarization event is a change in membrane potential where the inside of the cell becomes more negative than the resting potential, the rate level refers to the firing rate of an action potential, and the refractory period is the time period after an action potential during which the neuron cannot fire another action potential.

The _______ Is the Voltage Level at Which an Action