So this is one cell membrane on this side, and this is the other cell membrane on the other side. And this is our cytoplasm of the exxon hillock. So before we apply our stimulus, our cell membrane is resting. And remember, the resting membrane potential means that the inner portion is negatively charged and the outer portion, the extracellular portion of the cell membrane, is positively charged, as shown. So before any stimulus is applied, the membrane is negatively charged inside the cell and positively charged right outside the cell. Now, let's suppose our dendrites receive that signal and transmit that signal through the cytosol of the soma and to the exxon hillock.