On the radial side of the forearm, 4 cun distal to Qūchí L.I.-11, on the line connecting Qūchí L.I.-11 with Yángxī L.I.-5?

• A. LI 8
• B. LI 11
• C. LI 4
• D. LI 9

Answer: (A)

This tests locating a point on the Large Intestine channel along the radial forearm using the cun measurement. The LI meridian runs from the elbow at LI-11 down to the wrist at LI-5 along the radial side of the forearm. The point four cun distal from LI-11 on that line sits on the forearm between LI-11 and LI-5, and that position is LI-8. LI-4 is on the hand between the thumb and index finger, not on this forearm segment, and LI-9 is located elsewhere on the forearm along the channel. So the 4-cun mark from LI-11 along the LI-11 to LI-5 line corresponds to LI-8.