On the dorsum of the hand, two points located between the second and third and the fourth and fifth metacarpal bones, in the depressions lying immediately distal to the bases of the metacarpals.

• A. N-UE-19 YĀOTÒNGXUÉ
• B. M-UE-24 LUÒZHĚN
• C. M-UE-1 SHÍXUĀN
• D. M-UE-22 BĀXIÉ

Answer: (A)

Yaotongxue are two extra points on the dorsum of the hand, located in depressions immediately distal to the bases of the second and third metacarpals and the fourth and fifth metacarpals. This exact placement matches the description given, which is why it is the correct choice. These points are used specifically for acute lumbar and back-related issues, so their location on the dorsum of the hand near the bases of those metacarpals fits the cue provided. The other named points sit in different locations: Shi Xuan are on the fingertips, Baxie are eight points on the dorsum between the fingers, and Luo Zhen is another dorsal hand point with a distinct site, none of which correspond to the depressions distal to those metacarpal bases.