Sodium channels are maximum in which pa of neuron ?: (A) Soma, (B) Axon hillock, (C) Dendrites, (D) Axon
Answer is B. 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.