Heart Channel

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Which of the following best describes an internal branch of the Heart primary channel?

Spreads over the left breast
Ascends alongside the esophagus and connects to the tissue surrounding the eye
Connects to the root of the tongue
Descends through the Spleen and terminates at the umbilicus

The Heart channel has an internal branch that ascends alongside the esophagus and connects to the tissue surrounding the eye, thus it is able to treat swollen throat, throat pain, and eye problems. Even though the Heart "sprouts in the tongue", the primary channel does not connect to the tongue; only the Luo-Connecting channel does.

Source: "The Heart Channel of Hand Shao Yin." A Manual of Acupuncture, by Peter Deadman et al., Journal of Chinese Medicine Publications, 2007, p. 209. [Q26]