Study this diagram to place in mind the zones of the body. Since there are ten fingers and ten toes, there
are ten zones of the limbs and all parts of the body. Each line is drawn through the center of its respective zone, and the entire zone includes all parts and organs through which the respective zone line passes.

The right and left sides of the body are the same and each one passes through the body from front to back, or from back to front. This is true of the legs and arms, also the feet and hands. Take any of the internal organs of the body and determine what zone lines pass through them according to the chart. To find the desired reflex point on the feet, picture the part of the foot and follow the line to guide you to the organ involved.