Which point lies between the second and third metacarpal bones, proximal to the metacarpo-phalangeal joint, in a depression at the radial side of the third metacarpal bone?

• A. PC 8
• B. PC 9
• C. PC 7
• D. SJ 2

Answer: (A)

This question tests precise palm-point location for the Pericardium channel, specifically the palm point known as Laogong. Laogong is situated in the center of the palm, in a hollow between the second and third metacarpal bones, on the radial side of the third metacarpal, just proximal to the metacarpophalangeal joints. That exact position matches the description given. The fingertip point on the middle finger lies at the end of the finger, not in the palm; a wrist-crease point sits at the wrist rather than in the palm; and a San Jiao point on the hand points to a different location entirely. So the described site corresponds to Laogong, PC-8.