This is also heterogeneous, i.e. a composite of carbon-poor iron and cementite. Going to very fast cooling (quenching) will result in a single-phase (not composite) material called martensite. Here the carbon doesn't have time to exit the iron, and this martensite phase is very hard, but also normally too brittle.
Epithelial tissue - to cover the inner and outer surfaces of the stomach The stomach is one of the organs that form the digestive system. The stomach contains various tissues, and each tissue is made of a particular type of cell. In order of increasing size and complexity: cells â tissues â organ (the stomach) â organ system (the digestive system)
A mucous membrane is a layer of epithelial tissue which lines an area of the body which comes into contact with air.he mucous membrane (the stomach lining) acts as a barrier to prevent the underlying tissues from getting damaged by the alkaline and acidic substances. When the mucous membrane is damaged or weakened, chronic atrophic gastritis develops. Treatment is directed towards reducing inflammation of your stomach lining.