Which neuronal structure has the greatest density of voltage-gated Na⁺channels, resulting in the lowest threshold potential along a neuron? A) dendrites B) cell body C) axon hillock D) axon E) axon terminals

Question

Quizplus · Accepted Answer

The axon hillock has the greatest density of voltage-gated sodium channels, which is crucial for the initiation of action potentials. This high concentration of sodium channels results in the lowest threshold potential, making it the most excitable part of a neuron and the typical site where action potentials begin.

Which Neuronal Structure Has the Greatest Density of Voltage-Gated Na+channels

Which Neuronal Structure Has the Greatest Density of Voltage-Gated Na⁺channels