question 1\n3 tries left\nthe ________ is the level an impulse must exceed to cause a neuron to…

question 1\n3 tries left\nthe ________ is the level an impulse must exceed to cause a neuron to fire.\naction potential\nthreshold of potential\ngraded potential\nthreshold of excitation

question 1\n3 tries left\nthe ________ is the level an impulse must exceed to cause a neuron to fire.\naction potential\nthreshold of potential\ngraded potential\nthreshold of excitation

Answer

Brief Explanations:

The threshold of excitation is the minimum level an impulse must reach to trigger a neuron to fire. Action potential is the electrical signal generated when a neuron fires. Threshold of potential is not a standard term in this context. Graded potential is a small - scale change in membrane potential that may or may not lead to firing.

Answer:

D. threshold of excitation