The trigger region
A) is the point at which an action potential starts.
B) is adjacent to the cell body.
C) is part of the axon.
D) contains gated channels for sodium and potassium.
E) has all of these characteristics.

Question

Quizplus · Accepted Answer

The trigger region is the point at which an action potential starts, which is typically found near the junction between the axon hillock and the initial segment of the axon. Therefore, it is adjacent to the cell body and part of the axon. This region contains gated channels for sodium and potassium that are responsible for the initiation and propagation of the action potential. Therefore, all of the choices listed in the options are correct, making E the best choice.

The Trigger Region