Tight Junctions:
1. In addition the cell membranes lining the stomach have a very low permeability to H+, preventing their entry into the underlying mucosa.
The lateral surfaces of the epithelial cells near the lumen are joined together by tight junctions of cell memberanes, so that there is no extracellular passage between the cells by which material could diffuse from the lumen into the mucosa.
HL7 training helpsin proper integration. Cell Replacement; The epithelial mucous cells lining the walls of the stomach are continually being shed and replaced through cell division so that the lining of the stomach is completely renewed every three days.
