  The physical mechanism on meridians (acupuncture lines) is studied and a
theoretical model is proposed. The meridians are explained as an alternating
system responsible for the integration and the regulation of life in addition
to the neuro-humoral regulation. We proposed that the meridian conduction is a
kind of mechanical waves (soliton) of low frequency along the slits of muscles.
The anatomical-physiological and experimental evidences are reviewed. It is
demonstrated that the stabilization of the soliton is guaranteed by the
coupling between muscle vibration and cell activation. Therefore the
propagation of mechanical wave dominates the excitation of cell groups along
the meridian. The meridian wave equations and its solution are deduced and how
these results can be used in studying human healthy is briefly discussed .
