Woodblock illustration from a work on 'Chinese' medicine by the 18th century Japanese physician Hara Masakatsu, published in 1807 (4th year of the Bunkwa era). The large intestine channel of hand yangming is one of the Twelve Channels. It originates at shangyang (Shang Yang) and terminates at yingxiang (Welcome Fragrance). There are altogether 40 acu-moxa locations on this channel on both sides of the body, namely shangyang (Shang Yang), er jian (Second Belt), san jian (Third Belt), hegu (Joining the Valley), yangxi (Yang Stream), pianli (Veering Passage), wenliu (Warm Flow), xialian (Lower Edge), shanglian (Upper Edge), san li (Three Miles), quchi (Pool at the Crook), wu li (Five Miles), jugu (Great Bone), tianding (Celestial Tripod), futu (Support the Prominence), yingxiang (Welcome Fragrance), etc. Pathological changes in this channel are thought to cause conditions such as toothache, swollen neck, yellowish eyes, dry mouth, inflamed throat, pain in the shoulders and arms, and difficulty in moving the index finger.
