Which point is 5 cun proximal to Yángxī L.I.-5 on the line connecting Yángxī L.I.-5 with Qūchí L.I.-11?

• A. LI 6
• B. LI 7
• C. LI 8
• D. LI 4

Answer: (B)

Understanding how distances along a meridian are measured helps you locate points between two landmarks. For the Large Intestine line running from Yangxǐ (LI-5) toward Qūchí (LI-11), you locate points at fixed cun intervals as you move proximally toward the elbow. The point that sits five cun from LI-5 along that line is LI-7. That’s why this option is the best fit: it lies on the LI-5 to LI-11 path at the five-cun mark. LI-6 sits much closer to LI-5, LI-8 or LI-9 would be further up toward the elbow, and LI-4 is not on this line at all (it’s on the hand).