动输/Dong Shu

(The Pulsation of Arteries)

黄帝日:经脉十二，而手太阴、足少阴、阳明独动不休，何也?岐伯日:是明胃脉也。胃为五脏六腑之海，其清气上注于肺，肺气从太阴而行之，其行也，以息往来，故人一呼脉再动，一吸脉亦再动，呼吸不已，故动而不止。

Yellow Emperor said:"In the twelve channels, there are only the Hand Taiyin Channel of Lung, the Foot Shaoyin Channel of Kidney and the Foot Yangming Channel of Stomach have the unceasing pulsations of the arteries, and what is the reason?" Qibo said:“This is due to the Foot Yangming Channel of Stomach associates with the pulsation of the pulse. The stomach is the convergent location of the energies of the five solid organs and the six hollow organs, the fresh air converted by the refined substances of the food ascends to pour into the lung, and the air which starts from the Hand Taiyin Channel spreads to the whole body. The air of the lung operates up and down by the inhalation and the exhalation, and when one exhales once, the pulse pulsates twice, and when one inhales once, the pulse pulsates twice also, when the respiration carries on unceasingly, the pulsation of the Cunkou pulse will not stop."

黄帝日:气之过于寸口也，上十焉息?下八焉伏?何道从还?不知其极。岐伯日:气之离藏也，卒然如弓弩之发，如水之下岸，上于鱼以反衰，其余气衰散以逆上，故其行微。

Yellow Emperor said:"When the channel energy of Hand Taiyin passes the Cunkou, it rests when it ascends to reach the lung, and hides when it descends to reach the finger's tips. From what place will it return to its own channel of Hand Taiyin? I don't know its reason." Qibo said: “When the channel energy divorces from the internal organs inside to reach the channels outside, it is irresistable like the arrow shot from the bow or the torrent wates rushing down the cliff. When the channel energy ascends to reach the hand thenear eminence, it turns weaker, when the remainder energy reverses up, it will become deficient and seattered, and its movement is also slow."

黄帝日:足之阳明何因而动?岐伯日:胃气上注于肺，其悍气上冲头者，循咽，上走空窍，循眼系，入络脑，出颇，下客主人，循牙车，合阳明，并下人迎，此胃气别走于阳明者也。故阴阳上下，其动也若一。故阳病而阳脉小者为逆，阴病而阴脉大者为逆。故阴阳俱静俱动，若引绳相倾者病。

Yellow Emperor asked:"Why is there the artery in the Foot Yangming Channel of Stomach?" Qibo said: "When the stomach energy ascends and pours into the lung, the main flow of the energy rushes up to the head, then, it runs along the throat to reach the seven orifices and runs along the inner collaterals of the eyeball to contact with the brain inside, then, come out from the temple, descends to join the Kezhuren point, runs along the Jiache point and joins its own channel of Foot Yangming and ascends to Renying. This is the reason the Renying pulse is pulsating unceasingly when the stomach energy branches out and then returns to the Foot Yangming Channel. Thus, the pulsations of the Cunkou of the Taiyin artery and Renying of the Yangming artery are identical. When the Yang pulse is small in the Yang disease, it is called adverseness; when the Yin pulse is gigantic in the Yin disease, it is also called adverseness. Under the normal condition, the extent of pulsations of the Cunkou and Renying pulses are keeping balance, if one of them is overabundant and the other is deficient, it will cause disease."

黄帝曰:足少阴何因而动?岐伯曰:冲脉者，十二经之海也，与[与:《素问.离合真邪论》王注引《灵枢》“与”下有“足”字]少阴之大络，起于肾下，出于气街，循阴股内廉，邪入围中，循胫骨内廉，并少阴之经，下入内踝之后，入足下;其别者，邪[邪:本经《逆顺肥瘦篇》无此字]入踝，出属跗上，入大指之间，注诸络，以温足胫[胫:《甲乙》卷二第一下作“附”]，此脉之常动者也。

Yellow Emperor asked: "Why is there the artery pulsation in the Foot Shaoyin Channel of Kidney?" Qibo said: "The Chong Channel is the sea of the twelve channels. It starts from the Huiyin point together with the colaterals of the Foot Shaoyin Channel, it comes out from the Qi-chong point, runs along the inner side of the thigh, slanting into the poplitea of the knee, then, runs along the inner side of the tibia, joins its own Foot Shaoyin Channel of Kidney, enters into the rear of the inner ankle of the foot and comes out from the location near the outer ankle, enters into the toe and pours into the collateral of the Shaoyin Channel in the leg to warm and moisten the leg. This is the reason the pulsation is unceasing in the Foot Shaoyin Channel.

黄帝曰:营卫之行也，上下相贯，如环之无端，今有其卒然遇邪气，及逢大寒，手足懈惰，其脉阴阳之道，相输之会，行相失也，气何由还?岐伯曰:夫四末阴阳之会者，此气之大络也。四街者，气之径路也。故络绝则径通，四末解则气从合，相输如环。黄帝曰:善。此所谓如环无端，莫知其纪，终而复始，此之谓也。

Yellow Emperor said: "The Ying-energy and the Wei-energy pass through the whole body, they operate above and below like a ring without an end. When one encounters cold suddenly , his extremities will be strengthless, the Yin and Yang operations of his channels and the circulations of his energy and blood will become abnormal, under such situation, from which location will the energy turn back to keep the coming and going without stop-ping?" Qibo said: "The four extremities of the human body are the places for the Yin and Yang energies to converge, and they are the large collaterals of the channel energy: the head, chest, abdomen and the tibia and fibula are the passages of the channel energy, so, when the collaterals are blocked due to being invaded, the channels can still remain unimpeded. The channel energy will become harmony again after the evil-energies in the four extremities have been relieved and the transmission will go on like a ring without an end."

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