what muscle is found in the lining of the stomach
(1). Above: Diagram of the Stomach Wall. The epithelial cells that line the stomach form the mucosal epithelium layer. When the stomach is empty the mucosa lies in large folds called rugae and which look like wrinkles.he cells identified in the diagram above are: 1  Surface Mucous Cells (or  Mucous Surface Cells ) - which secrete mucus. 2  Neck Mucous Cells (or  Mucous Neck Cells ) - which secrete a mucus whose acidity is more neutral than that secreted by the cells at the surface of the stomach lining. 3  Chief Cells.