Which San Jiao point is located in the depression 1 cun proximal to the olecranon with the elbow flexed?

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

Answer: (B)

The key idea is locating the San Jiao point by using a clear elbow landmark. The designated spot sits in the hollow just above the olecranon when the elbow is flexed, about 1 cun proximal to the olecranon along the back of the elbow. That precise depression corresponds to SJ-10. It’s a classic elbow-point location used for issues around the elbow and for conditions affecting the San Jiao channel.

Other nearby SJ points are in different positions around the elbow area and do not sit in this exact posterior depression above the olecranon when the elbow is flexed, so they don’t match this description.