Functionally, which cellular location is the neuron's "decision-making site" as to whether or not an action potential will be initiated?
A) axonal membranes
B) axon hillock
C) presynaptic membranes
D) mitochondrial membranes

Question

Quizplus · Accepted Answer

The axon hillock is considered the "decision-making site" of the neuron. This is because it integrates the inputs from various dendrites and if the net input is large enough to reach threshold, an action potential will be initiated. The axonal membranes and presynaptic membranes are involved in the propagation and transmission of the action potential, but not in the initial decision to fire. The mitochondrial membranes are involved in cellular respiration and energy production, but not in the processing of neuronal information.

Functionally, Which Cellular Location Is the Neuron's "Decision-Making Site" as to Whether