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 hillocks
C) dendritic membranes
D) mitochondrial membranes
E) presynaptic membranes

Question

Quizplus · Accepted Answer

The axon hillock is the portion of the neuron where action potentials are typically initiated. This is because it contains the highest concentration of voltage-gated ion channels, which are needed for the rapid depolarization required for an action potential to occur. While other membrane locations may contribute to the overall excitability of the neuron and the aggregation of synaptic inputs, the axon hillock is considered to be the primary "decision-making site" for action potential initiation.

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