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1、Meridians and collateralsMeridians and collaterals1Functions of meridianClinical application of meridian theories5432Twelve Divergent meridiansEight Extra meridians Eight Extra Meridians are the meridians whose courses are different from the twelve regular meridians,eight in all,namely Governor Vess
2、el,Conception Vessel,Thoroughfare Vessel,Belt Vessel,Yin Link Vessel,Yang Link Vessel,Yin Heel Vessel and Yang Heel Vessel.The Eight Extra MeridiansDifferences compared with Twelve Regular meridiansv They do not belong to any Zang-fu organs directly;v They have no exterior-interior relationship amon
3、gst themselvesv They travel in an extraordinary way compared to the twelve regular meridiansv Apart from GV and CV which have their own points,the other meridians share the points with the twelve regular meridians.Functions of Eight Extra Meridians They distributed longitudinally and horizontally am
4、ong the twelve regular meridians,working not only as strengthening the association between the Twelve Regular meridians,but also as dominating and controlling qi and blood,as well as balancing yin and yang.They regulate the qi and blood of the regular meridians,such as in storage,drainage of the qi
5、and blood.If the Twelve Regular meridians were likened to the rivers and great rivers,the eight extra meridians would be likened to the lakes and reserviors.Physiological functions:(1)Regulates qi and blood of yang meridians and be named as sea of yang meridians;(2)Reflects the function of brain,kid
6、ney and spinal cord;(3)Governs reproduction Governor Vessel Conception Vessel Physiological functions:(1)Regulates qi and blood of yin meridians and be named as sea of yin meridians;(2)Regulates menstruation and pregnant fetus.v Conception Vessel governs uterus and gestationThoroughfare Vessels Phys
7、iological functions:(1)Regulates qi and blood of twelve regular meridians;(2)Governs reproduction;v“The sea of twelve regular meridians”v“The sea of five zang organs and six fu organs”Belt Vessel Physiological functions:Restrains the other meridians like a belt Twelve divergent meridiansTwelve diver
8、gent meridians are branches departing from the twelve regular meridians and traveling deeply into the body cavity.Twelve divergent meridians have four distribution characteristics,namely“separating”,“entering”,“resurfacing”and“joining”By the distribution of separating,entering,resurfacing and joinin
9、g,the divergent meridians strengthening the bonds between the interior and exterior-paired regular meridians as well as with their Zang-fu organs.Twelve Divergent meridiansSeparating usually atPopliteal fossa(or the elbow)Yang meridiansYin divergent meridiansYang divergent meridiansResurfacing usual
10、ly at neck or the faceThe yang divergent meridians then join their own regular meridians again,while yin ones join their internally-externally related yang meridians SeparatingEnteringResurfacingJoiningYang meridianYin meridianPhysiological functions of meridians Circulating qi and blood Linking Zan
11、g and fu organs and communicating the internal with the external Resisting evil qi Inducing and transmitting information Regulating the balance of the body functions Circulating qi and blood All zang-fu organs and tissues conduct their normal physiological functions,relying on the nourishment provid
12、ed by qi and blood,which are transmitted by meridians.As stated in the Ling Shu,Ben Zang(Spiritual Pivot,Chapter 47)“the meridians have the function of moving qi and blood,nourishing yin and yang,lubricating joints and tendons.”Linking zang and fu organs and communicating the internal with the exter
13、nal Human body is a complicated organism consisting of five zang organs and six fu organs,four limbs and bones,five sensory organs and nine orifices,tendons,muscles,etc.Each of them has its own special functions and all of them make the body an organic whole.Such interrelation or coordination betwee
14、n them is accomplished through the communicating function of meridians.Resisting evil qi In Ling Shu,Ben Zang(Spiritual Pivot,Chapter 47)it was recorded that “the meridians have the function of moving qi and blood,nourishing yin and yang,lubricating joints and tendons.”This sentence shows that the m
15、eridians and collaterals can”transport blood and qi to adjust yin and yang”,and since the“nutritive qi flows inside the meridians and defensive qi runs outside the meridians”.The defensive qi is disperse to the skin thereby strengthening the function of defending the surface of the body.Inducing and
16、 transmitting information The phenomenon of arrival of qi,normal sensation felt by the patient treated with acupuncture,is a specified manifestation of inducing and transmitting functions of the meridians.Regulating the balance of the body functions Meridians function to promote the circulation of q
17、i and blood and harmonize yin and yang,thus maintaining the functional activities of the body in a state of a relative balance.Clinical application of meridian theories Explaining the pathological changes Guiding the diagnosis of disease Guiding the treatment of diseaseExplaining the pathological ch
18、anges Meridians function to transport qi and blood,induce and transmit information.Pathologically,they serve as the passages for transmitting pathogenic qi and manifesting disorders.Stagnation of liver qipain in hypochondrium and lower abdomen Guiding the diagnosis of disease Each meridian runs alon
19、g certain routes and pertains to one viscus.Under pathological conditions,some morbid phenomena may frequently occur along a meridian and the viscus that it pertains to.e.g.Frontal headache indicates a disease of yangming meridian Headache of the temporal region is a disease of shaoyang meridian pai
20、n in the nape and occipital region can be the clue to a disease of taiyang meridianGuiding the treatment of disease The theory of meridians has been extensively applied to direct the treatment in all clinical specialties,and particularly to the treatment with acupuncture,moxibustion and massage when locating acupoints along the meridians,and to the treatment with drugs when selecting drugs according to meridian tropism.