0.5 cun within the anterior hairline, 1.5 cun lateral to Shenting DU-24 and one third of the distance between Shenting DU-24 and Towei ST-8.

• A. BL 2
• B. BL 3
• C. BL 4
• D. BL 1

Answer: (B)

This question tests how forehead points on the Bladder channel are described using facial landmarks and measured distances. Shenting DU-24 sits at the middle of the hairline on the forehead, and Towei ST-8 lies toward the lateral end of the same hairline. The description places a point 0.5 cun inside the hairline (toward the face), 1.5 cun lateral to Shenting, and one third of the distance from Shenting to Towei along the hairline. Putting these together locates a specific point on the Bladder channel in the forehead region, matching the standard description for the third point in this sequence. That alignment is why the correct point is the Bladder point in this forehead area.