Which of the following is true about threshold for an action potential?
A) It is more positive than the resting membrane potential.
B) Voltage-gated potassium channels begin to close.
C) Voltage-gated potassium channels begin to open.
D) The membrane begins to hyperpolarize.
E) Threshold for a typical neuron is approximately -30 mV.

Question

Quizplus · Accepted Answer

The threshold for an action potential is more positive than the resting membrane potential, which is typically around -70 mV. When the membrane potential reaches this threshold, voltage-gated sodium channels open, leading to depolarization.

Which of the Following Is True About Threshold for an Action