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)
Body Tissues and Membranes. A tissue is composed of similarly specialized cells that perform a common function in the body. Epithelial Tissue. Epithelial tissues cover the body surface, line most cavities, and form glands. Functions include protection, absorption, secretion, and filtration.lood. A type of connective tissue in which the extracellular matrix is liquid and contains soluble proteins that aren't made by the cells of the tissue (exception: some leukocytes secrete gamma globulins, or antibodies). Muscular Tissue. Muscular tissue is composed of fibers (cells) that contract.