[Electron microscopy studies of surface cells and cells in the area of the glandular neck of normal stomach mucosa in humans].

The authors describe the submicroscopical structure of surface epithelial cells of the mucosa and cells of the stomach gland cervix in men. On the basis of electronmicroscopic studies of bioptic samples of the stomach mucosa the surface epithelium of the stomach mucosa in men was found to be covered with high cylindrical cells showing typical small, relatively low microvilli at the luminal side with numerous mucous granules in the supranuclear zone of the cells. The basal part of the cell is extremely dense containing numerous ribosomes, a Golgi apparatus and mitochondriae. Isthmic cells were found to differ from surface cells by the location of the nucleus and the amount of mucous granules, which are larger and granular in the rule. The cells of this zone are mutually connected by desmosomes. The granular endoplasmic reticulum is present at a relatively lesser amount as compared to the former group of cells. These cervical cells are of importance from the viewpoint of regeneration and may differentiate into the other cell types of the stomach mucosa.