Which point is described as located at the radial side of the middle finger near the nail, approximately 0.1 cun from the corner of the nail?

• A. PC 7
• B. SJ 1
• C. PC 9
• D. PC 3

Answer: (C)

Precise finger-tip location is what this item tests. The point on the Pericardium channel that sits at the very end of the middle finger is located at the center of the fingertip—the distal-most point on the hand’s surface for that channel. This makes it the fingertip point among the options, which is why it’s chosen as the correct answer.

The description given—radial side of the middle finger near the nail, about 0.1 cun from the nail corner—actually corresponds to a different point on the hand (on the nail bed of a finger on the ring finger for that channel) rather than the fingertip point on the middle finger. The other listed points lie along the forearm or at joints, not at the fingertip, so the fingertip location is what uniquely fits the option identified.