Which LU point is on the flexor aspect of the forearm, 7 cun proximal to LU-9, on the line connecting LU-9 with LU-5?

• A. LU-9
• B. LU-6
• C. LU-7
• D. LU-8

Answer: (B)

Focus here is on locating a LU channel point by its position on the forearm using cun measurements. Along the line from LU-9 at the wrist toward LU-5 at the elbow, a point that sits on the flexor aspect of the forearm and is seven cun proximal to LU-9 is the Xi-cleft point of the LU channel, Kongzui. This point is specifically defined by that distance and alignment, making it the one described.

Other LU points along that same line sit at different distances or on different portions of the forearm, so they don’t match the 7-cun-from-LU-9 description. LU-8 is closer to LU-9, and LU-7 lies nearer LU-5 but at different measurements, while LU-9 itself is at the wrist. Therefore, the location that fits the given distance and line is Kongzui.