we selected 10 adult male rats(weight 165-250g)

which were divided into control group and experimental group and were used in this studies for electron microscopic observation. In control group.The hepatocyte contains large amount of rough end- oplasmic reticulum(RER)and smooth endoplasmic reticulum(SER)in the central and intermediate area of classic lobules.The glycogen a-particles mainly accumulated in periphery area of classic lobules.The hepatic cell possessed abundant mitochondria which was always closely surrounded by flat cisternae of RER. After the acupuncture experiment.The hepacal cell body and nucleus was hypertrophy and nucleolus were predominant.In the hepatocyte the number of RER

free ribosome and polysome were increased

the end of cisternae of RER appeared dilated and the associated ribosome were decrea- sed.So that it was called degranues phenomenon.Cisternaes and tubules of SER were dilated and anastomosed one another to form the irregular meshwork thatistributed throughout in the cytoplasma.The swelled mito- hoadria were with tubule cristae which was transformed from the plate cristae.The glycogen α

β-particles filled the cytoplasma of hepatocytes in three areas of the classic.The Golgi complex well developed and seted near the dilated bile canaliculi(B.C)that was with more longer microvilli pro- jected into the lumen.The junction complex in periphery of B.C.was not changed.Dissess space was distended and filled numerous microvilli which branched and anastomosed with each other formed loose meshwork.The fat-storing cell extend the plasmic processes.Some of which arrenged along endothelial lining.In the cytoplasm of this cell

there were abundant RER

free ribosome and polysome.The cisternae of RER possessed flocculent material of low electron density.It is appeared that the synthesis of fat- storing cell was increased.In addition

there were a number of large lipid droplete in the cytoplasm of this cell.The phagocytosic activity of Kupffer's cells was predominently increased. At last

the relationship between the control group and the acupunc- ture experimental group was discussed in this article too.