This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
[{'content': 'Sodium channels are maximum in which pa of neuron ? \nSelect and explain. \nA. Soma, B. Axon hillock, C. Dendrites, D. Axon', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is'b'i.e., Axon hillockIn a motor neuron, the axon hillock and the initial segment of axon have the lowest threshold for excitation.This is because they have a much higher intensity of voltage gated sodium channel.", 'role': 'assistant'}]