In the present paper

the authors make a brief explanation about the concepts of yin

yang

zangfu-organs and promoting flow of meridian-qi from classical meridian-collateral theory

neuroanatomy of modern medicine and clinical treatment of cervico-spondylopathy and lumbar vertebral disorders. ① From the relationship between yin-yang doctrine and neuroanatomy

we can clearly see that the two sets of doctrines both describe the regularities of symmetry of different parts of the human body. The so-called yin and yang of meridian-collateral system are closely associated with the bilateral innervation of the brain

convergence of the bilateral spinal afferent nerves and partially with the segmental distribution of the spinal nerves. ② The connotation of zangfu-organ in the theory of meridian-collaterals refers to the close correlation between the body trunk (including the spinal cord and the internal organs) and the four extremities

which the segmental distribution of the spinal nerves is deeply involved. ③ Promoting flow of meridian-qi mainly means promoting transmission of the acupuncture stimulation signals. ④ Acupoint selection for treatment of cervico-spondylopathy and lumbar vertebral disorders also show the symmetry regularity

when the peripheral nerves are stimulated to induce radiating needling sensation

a marked therapeutic effect would be achieved.