Which point is on the posterior border of the sternocleidomastoid muscle, about 1 cun inferior to Wanggu GB-12, on a line drawn between Tianzhu BL-10 and Tianrong SI-17?

Which point is on the posterior border of the sternocleidomastoid muscle, about 1 cun inferior to Wanggu GB-12, on a line drawn between Tianzhu BL-10 and Tianrong SI-17?

• A. SJ 17
• B. SJ 18
• C. SJ 19
• D. SJ 16

Answer: (D)

The point being tested is located along the side of the neck on the posterior border of the sternocleidomastoid muscle, using fixed landmarks to pin it down. This spot is about 1 cun below GB-12 and sits on the line drawn from Tianzhu (BL-10) to Tianrong (SI-17). That exact positioning corresponds to SJ-16 (Tianying), which sits at that location on the neck. Why this is the best fit: SJ-16 is defined as being on the posterior border of the SCM, about 1 cun below GB-12, along the BL-10 to SI-17 line. The other points around the ear region are located in different nearby areas and do not lie on that same posterior- SCM line, so they don’t match the described coordinates.

The point being tested is located along the side of the neck on the posterior border of the sternocleidomastoid muscle, using fixed landmarks to pin it down. This spot is about 1 cun below GB-12 and sits on the line drawn from Tianzhu (BL-10) to Tianrong (SI-17). That exact positioning corresponds to SJ-16 (Tianying), which sits at that location on the neck.

Why this is the best fit: SJ-16 is defined as being on the posterior border of the SCM, about 1 cun below GB-12, along the BL-10 to SI-17 line. The other points around the ear region are located in different nearby areas and do not lie on that same posterior- SCM line, so they don’t match the described coordinates.