The redial artery activity can be felt at 9 beans of pressure, right in the middle of the distance between the skin and the bone.
Divisions of the Depth of the pulse can be viewed many ways. Each of the pulses, the cun, guan and chi positions, is read at three depths: superficial, moderate and deep. Each of these depths can represent a type of Qi, a commodity, a region, an organ, or a channel. By switching lenses as we take the pulses we select what we are examining.