On the lateral side of the upper arm, in the visible and tender depression formed between the distal insertion of the deltoid muscle and the brachialis, approximately three fifths of the distance along the line LI-11 to LI-15.

• A. LI-11
• B. LI-14
• C. LI-16
• D. LI-12

Answer: (B)

This question tests precise location along the Large Intestine channel on the lateral upper arm. The key landmark is a visible, tender depression between where the deltoid inserts and the brachialis lies, and this spot sits on the line connecting LI-11 at the elbow to LI-15 near the shoulder. It is described as being about three-fifths of the way from LI-11 toward LI-15, which identifies a specific point known for the upper arm region of the LI channel.

That combination of landmarks—the lateral upper-arm position, the depression between deltoid and brachialis, and the measured distance along the LI-11 to LI-15 line—matches the location of LI-14. So the correct point is the one located in that deltoid-brachialis interval along the LI-11 to LI-15 line, about three-fifths from the elbow.