What is the anatomical location of BL-47?

The anatomical location of BL-47, also known as "Zhongdu," is accurately described as being located lateral to BL-18, which is the point for the liver, situated on the back. In traditional acupuncture, BL-47 is positioned on the back along the bladder meridian. It lies in the area around the lower thoracic vertebrae, specifically between the spinous processes of T9 and T10.

Being lateral to BL-18 implies that BL-47 is situated adjacent to and towards the outer side of the point for the liver, which has significance in the context of treating conditions related to the liver and biliary function. This location is essential for practitioners to accurately find and utilize the point for therapeutic purposes.

The other choices refer to anatomical locations that do not correspond correctly to BL-47’s position. For instance, the options mentioning specific structures at the wrist or in the popliteal crease are irrelevant to the location of BL-47, as those points are associated with different areas on the body pertaining to different acupuncture points.