Which SI point is on the ulnar border of the hand, in the depression between the base of the fifth metacarpal bone and the triquetral bone?

Which SI point is on the ulnar border of the hand, in the depression between the base of the fifth metacarpal bone and the triquetral bone?

• A. SI 1
• B. HT 4
• C. HT 9
• D. SI 4

Answer: (D)

The depression described is the location of SI4, the Yuan-Source point of the Small Intestine channel, on the ulnar border of the hand between the base of the fifth metacarpal and the triquetral bone. This exact spot uniquely identifies SI4, which is why it’s the correct choice. This point is commonly used for issues along the Small Intestine channel and for wrist/hand-related pain. The other points sit elsewhere—for example, along the wrist or at the fingertips—so they don’t match the described depression.

The depression described is the location of SI4, the Yuan-Source point of the Small Intestine channel, on the ulnar border of the hand between the base of the fifth metacarpal and the triquetral bone. This exact spot uniquely identifies SI4, which is why it’s the correct choice. This point is commonly used for issues along the Small Intestine channel and for wrist/hand-related pain. The other points sit elsewhere—for example, along the wrist or at the fingertips—so they don’t match the described depression.