The nerve terminal distributed in peripheral tissues were observed with microscopy

by means of separate and consecutive methods demonstrating cathecolamine fluorescence and cholinesterase. Ac cording to the concept of Jingluo described by Chinese ancient medical scholars

the paper advanced the relation between nerve network and Jingluo as follows: ① Qi as the commander of blood

namely it ac tivastes and governs the blood circulation. Both adrenergic and cholinergic network is distributed around the wall of small blood vessels

being called perivascular plexus. The function of perivascular plexus represents the physiological effect of Qi. ② About structures of acupoints the ancients consid ered that they were neither skin muscle nor tendon bone but the place where vitality moves inward and outward

and the collateral branches of large channels ooze and irrigate. We found that by small arter ies or arterioles there were many smll ChE-positive nerve bundle

their termieds showed a variety of free nerve endings being called paravascular plexus

which were needling receptors and conncted with perivascular plexus. This may be considered as an example of the saying in MIRACULUS PIVOT: "Using the filiform needle to drege channels and promte circulation." It was also found that there were adrenergic efferent paravascular in the subcutis of rats. The efferent and afferent paravascular plexus are superimposed with the same preparation

and their terminal could contact with each other.It is illustrated that not only sympathetic nerve terminals modulate C-fibers afferents

but also form the endless circulation of Qi. ③"Yin"-"Yang" theory is an important constitute of the theory of traditional Chinese medicine. It is well known that sympathetic and parasymppathetic systems constitute an antag onistic contradiction. In TCM there eaistsusolitary Yin" "solitare Yang" theory. For example

the muscle of iris

the circular sphincter of the pupil is innervated the parasympathetic nerve alone

while the dilator of the pupil is innervated sympathetic only stated in some textbcoks. It is short of the cir cumtance depending on each other for existence. It's actualy not the case

the muscle of iris are in nervated by both the parasympathetic and sympathetic nerves. Using the consecutive method demon strating CA and AChE

the relationship between sympathetic and parasympathetic innervation was ob served. In the same section

sympathetic and parasympathetic terminal were found overlapped in many internal organs. It may be morphological basis for their depending on each other. So interdepen dance between"Yin" and "Yang" is scientific. ④ Our ancients paid much attention to the situaion of blood circulation. When it is in normal state

one would keep in good health; in case of that"Qi" and "Xue"(blood) are out of harmony

various diseases may occur. After hemorrhagic shock

the neuro transmitter in the adrenengic network was obviously decreased; Acupuncture could accelerate their re covery. To sum up

Jingluo is composed of blood vessels

nerves

nerve network in particular. The various functions of Jingluo are all fulfilled in the network

such as realizing Qi commanding Xue

con ducting the acupuncture effect

the endless circulation of Qi

interdependence between "Yin" and "Yang"

and treatment of disoues with traditional Chinese medicine

especially with acupuncture