An action potential in a neuron begins when ____.
A) a threshold potential is reached at the trigger zone
B) the resting potential is established
C) gated sodium channels close
D) gated potassium channels close
E) neurotransmitters are received by dendrites

Question

​An action potential in a neuron begins when ____.
A) ​a threshold potential is reached at the trigger zone
B) ​the resting potential is established
C) ​gated sodium channels close
D) ​gated potassium channels close
E) ​neurotransmitters are received by dendrites

Quizplus · Accepted Answer

An action potential in a neuron begins when a threshold potential is reached at the trigger zone. This triggers the opening of voltage-gated sodium channels, leading to the rapid depolarization of the neuron's membrane.

​An Action Potential in a Neuron Begins When ____

An Action Potential in a Neuron Begins When ____