Which point is located at BL-19?

The correct choice corresponds to the location of the point BL-19, which is more commonly known as the Gallbladder Shu point. This point is situated on the bladder meridian and is located on the back at the level of the lower thoracic vertebrae, specifically at T10. In acupuncture terminology, BL-19 is located approximately 1.5 cun lateral to the midline at the level of T10.

In this context, the choice that indicates Du-9 is correct because Du-9 is located at a different vertebral level, specifically at T7, which means it is further up the spine compared to BL-19. Understanding the anatomical location of these points is crucial in practicing acupuncture, as each point has specific therapeutic implications depending on its location and meridian association.

The other points listed are also situated along the Du (Governing Vessel) meridian but are all at different levels of the spine, which places them in relation to Du-9 and ultimately to BL-19 in a manner that highlights the importance of anatomical accuracy when selecting acupuncture points for treatment.