Which San Jiao point is located on the dorsum of the hand just proximal to the 4th and 5th metacarpophalangeal joints?

• A. SJ-3
• B. SJ-4
• C. SJ-5
• D. SJ-6

Answer: (A)

The main idea is accurately locating a San Jiao point on the hand. This point sits on the dorsum of the hand in a small hollow just proximal to the 4th and 5th metacarpophalangeal joints, along the ulnar side where the ring and little finger tendons are. That specific placement makes it the distal hand point of the San Jiao channel.

Knowing this helps distinguish it from the other options: one is at the wrist crease on the dorsum, and the others are higher up the forearm along the channel. So the point described—on the dorsum of the hand just before the 4th and 5th MCP joints—belongs to the San Jiao point near the little finger, SJ-3.