Which BL point is 1.3 cun lateral to Nǎohù DU-17 (the depression above the external occipital protuberance)?

Which BL point is 1.3 cun lateral to Nǎohù DU-17 (the depression above the external occipital protuberance)?

• A. BL-8
• B. BL-11
• C. BL-10
• D. BL-9

Answer: (D)

DU-17 sits at the midline at the base of the skull. The Bladder points in this occipital region are defined by how far they are from that midline. When you measure 1.3 cun to the side of DU-17, you land on BL-9. So the spot described by the distance corresponds to BL-9. The other options lie at different lateral offsets from DU-17, so they don’t match the 1.3 cun measurement.

DU-17 sits at the midline at the base of the skull. The Bladder points in this occipital region are defined by how far they are from that midline. When you measure 1.3 cun to the side of DU-17, you land on BL-9. So the spot described by the distance corresponds to BL-9. The other options lie at different lateral offsets from DU-17, so they don’t match the 1.3 cun measurement.