It contains these projections known as dendrites, that receive the electrical signal from other cells. And then our dendrite sends those electrical signals through the soma and to the axon hilloc. Now, that axon hillock receives the stimulus, and if the stimulus is high enough, if it reaches the threshold value, an action potential is generated on the axon hillock. And then that action potential somehow moves along the axon and all the way to the axon terminal, away from the soma of the neuron. Now the question is, how exactly does our action potential actually travel along the exxon? And why does our action potential only move in this direction, away from our soma?