Practice question
Question
Which part of neuron is the trigger zone for action potential initiation?
Explanation
Axon hillock–initial segment junction (B) is the right choice. This sits at the heart of Neuron; Structure and Function: the wording points straight to what is happening in the tissue or organ system. A useful study habit is to ask what the structure or process is for: Axon hillock–initial segment junction is the option that correctly names the structure, process, or principle asked for in Neuron; Structure and Function. That reasoning supports Axon hillock–initial segment junction. One solid sentence about why this works is enough for recall — you do not need a long essay for every MCQ.