Observation of leading apparatus in Scophthalmus maximus in histology

The structure of heart,stomach,intestine,liver,pancreas,spleen,nephras in Scophthalmus maximus were observed with micro-technique.The results showed that there were three layers from inter to outer in the heart: endocardium,myocardium and epicardium,in which myocardium were the thickest.The dissepiment of stomach in which intestine included mucous layer,tunica submucosa,lamina muscularis mucosae and membrana externa.Sometimes oxyphilous particles were observed in stomach gland.The plicae of intestinal mucosa was simple ciliated columnar epithelium.Calyciform cell was found in the cellula columnoepithelialis and the volume was large.The volume of liver cells was so large and was polygon in shape.The liver cells made of concavo-convex liver cell cords with central vein as center.Most part of pancreas attached on the intestine wall while a few parts imbed in the liver.The splenic parenchyma was made up of white pulp and red pulp.There were many central arteriae inside the splenic parenchyma.Nephros were made up of renal corpuscle and renal tubule.Cortex and medulla was mixed together.