Which BL point lies on the lateral aspect of the trapezius muscle?

• A. BL-9
• B. BL-11
• C. BL-12
• D. BL-10

Answer: (D)

The question tests where BL points lie in relation to the neck and shoulder muscles, specifically which point sits on the lateral edge of the trapezius. BL-10 (Tianzhu) is located in a shallow hollow on the outer side of the trapezius, near the upper neck/occipital region. This position places it clearly on the lateral aspect of the trapezius, which is the outer edge of that muscle as it runs from the neck toward the shoulder.

The other back-bladder points listed are interpreted as being more medial along the spine or at different vertebral levels, not on the outer edge of the trapezius, so they don’t fit the description. BL-10 is commonly used for issues around the occipital region, neck stiffness, and shoulder tension, aligning with its anatomical placement on the lateral trapezius.