Which point is located on the radial side of the index finger?

The point located on the radial side of the index finger is indeed LI-2, or Large Intestine 2. This acupuncture point is situated in the depression just distal to the second metacarpophalangeal joint, on the radial side of the index finger.

In terms of its function, LI-2 is used to clear heat, alleviate pain, and is often indicated for conditions such as sore throat and toothache associated with heat. Its location is important for practitioners as it provides access for treatment of both local and systemic issues.

Other points listed, like LI-4 is located on the dorsum of the hand between the first and second metacarpals, LI-3 is found on the ulnar side of the index finger, and LU-11 is located on the radial side of the thumb. Therefore, while all points have their specific anatomical locations and indications, LI-2 is the one that aligns correctly with being on the radial side of the index finger.