Which BL point is on the lower leg, located in the depression between the two heads of the gastrocnemius and 2 cun inferior to Weizhong BL-40?

Which BL point is on the lower leg, located in the depression between the two heads of the gastrocnemius and 2 cun inferior to Weizhong BL-40?

• A. Bl 55
• B. Bl 50
• C. Bl 54
• D. Bl 53

Answer: (A)

This question tests precise location along the Bladder channel using anatomical landmarks. The site described—an indentation between the two heads of the gastrocnemius on the lower leg, about 2 cun below the popliteal crease point BL-40 (Weizhong)—is the defining description of BL-55. Locate BL-40 at the center of the knee crease, then travel down the posterior calf two cun to land in the groove between the gastrocnemius heads, where BL-55 sits. Other points in the area sit at different landmarks or distances, so they don’t fit this exact description.

This question tests precise location along the Bladder channel using anatomical landmarks. The site described—an indentation between the two heads of the gastrocnemius on the lower leg, about 2 cun below the popliteal crease point BL-40 (Weizhong)—is the defining description of BL-55. Locate BL-40 at the center of the knee crease, then travel down the posterior calf two cun to land in the groove between the gastrocnemius heads, where BL-55 sits. Other points in the area sit at different landmarks or distances, so they don’t fit this exact description.