Large Intestine Channel

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Which of the following best describes the pathway of the Large Intestine Luo-Connecting channel?

Ascends to the face, divides on the cheek, with one branch entering the ear and the other branch entering the teeth
Binds at the wrist, elbow, and shoulder
Winds around the back to connect to DU-14
Spreads over the dorsal aspect of the hand

The LI Luo-Connecting channel goes to the face, splits, and enters the ear and teeth. That's why LI-6 can treat ear and teeth problems, like tinnitus, deafness, toothache, and tooth decay.

Source: "The Large Intestine Channel of Hand Yangming." A Manual of Acupuncture, by Peter Deadman et al., Journal of Chinese Medicine Publications, 2007, p. 96 [Q149]