Which BL point is located 1.5 cun lateral to the midline at the level of the first posterior sacral foramen?

Which BL point is located 1.5 cun lateral to the midline at the level of the first posterior sacral foramen?

• A. BL 28
• B. BL 27
• C. BL 29
• D. BL 26

Answer: (B)

The idea being tested is how the Bladder channel’s back Shu points are arranged along the sacral foramina. Each sacral foramen has a corresponding point, located 1.5 cun lateral to the midline. The first posterior sacral foramen corresponds to the point you’re looking for, so the point at that level is BL-27. That’s why it’s the correct choice. To visualize it: identify the sacrum and find the first posterior sacral foramen, then measure 1.5 cun to the side from the midline to locate BL-27. (BL-28 would be at the second foramen, BL-29 at the third, and BL-26 at the fourth.)

The idea being tested is how the Bladder channel’s back Shu points are arranged along the sacral foramina. Each sacral foramen has a corresponding point, located 1.5 cun lateral to the midline. The first posterior sacral foramen corresponds to the point you’re looking for, so the point at that level is BL-27. That’s why it’s the correct choice.

To visualize it: identify the sacrum and find the first posterior sacral foramen, then measure 1.5 cun to the side from the midline to locate BL-27. (BL-28 would be at the second foramen, BL-29 at the third, and BL-26 at the fourth.)