(1) The Yuan-Source acupoints are located in the vicinity of the wrists and ankles. Each meridian has one Yuan-Source point. Altogether there are 12 Yuan-Source acupoints which are closely related to the zang-fu organs and are the points where visceral qi is infused via triple energizer. Therefore, the disorder of zang-fu organs can be manifested on the Yuan-Source acupoints and can be treated by needling Yuan-Source acupoints. The Yuan-Source acupoints on the yang meridians are located posterior to the Shu-Stream acupoints, but the Yuan-Source acupoints on the yin meridians are just the Shu-Stream acupoints. (See Table 4 - 3).
(2) Luo-Connecting acupoints are situated at the places where the twelve regular meridians, the conception and governor vessels are distributed. Each has
one Luo-Connecting acupoint and the spleen has another major Luo-Connecting acupoint. So altogether there are 15 Luo-Connecting acupoints. The Luo-Connecting acupoints function to connect the meridians internally and externally related to each other and are used to treat disorders of such pairs of meridians. The Luo-Connecting acupoints on the conception and governor vessels as well as the major Luo-Connecting acupoint of spleen are mainly used to treat diseases of the trunk (see Table 4 - 3).
(3) In clinical treatment, the Yuan-Source acupoints and Luo-Connecting acupoints may be used independently or in combination. The method for the combination of Yuan-Source and Luo-Connecting acupoints is to select the corresponding Yuan-Source acupoint of the viscus primarily involved and the corresponding Luo-Connecting acupoint of the viscus secondarily involved. Usually this method is to deal with the disorders involving the meridians externally and internally related to each other.