Mastic Carvedwood Siding Colors. Description: Mastic Carvedwood 44 is a a cedar lap siding that is available in 6 different profiles, 2 finishes that includes smooth and wood grain and 26 colors selections.
These folds give the stomach its well-known ability to enlarge when engorged with food. On the outermost layer of these folds you may see a thin line of material. This is mucus which helps protect the tissues below from the harsh environment of the stomach. The innermost layer is a lining of simple columnar epithelium (labeled in the high magnification image). This type of epithelium provides the greatest surface area for abosrption or secretion. In the stomach the epithelial cells exposed to the lumen are primarily constructed to resist digestion by the lumen contents. The epithelial layer forms depressions called gastric glands or pits. Within these pits are mucous secreting cells, parietal cells which secrete HCL, and chief cells which secrete pepsinogen.
The most basic characteristic of epithelial tissue is that it covers the surfaces of the body, whether external or internal. It acts as a protective covering or boundary for such surfaces, including the outer layer of the skin, as well as the inner surface of hollow organs like the stomach, colon, and blood vessels.espiratory epithelium separated by bands of inflamed tissue and muscle. Skin is epithelial tissue more than one cell thick and known as stratified epithelium. Epithelial cells lining the digestive tract -- including those of the esophagus, stomach and intestines -- undergo continuous division.