What are epithelial cells?

Epithelial cells are a group of firmly compressed cells that throw into the inner and outer surfaces of the body organs and other surfaces found in the body. These cells are also referred to as the tissue called epithelium as a collective term. These cells are also the primary composition of human skin. Animal and human epithelial cells found along the digestive system can also absorb the nutrients that the body needs during the digestion process. They can also help with the secretion of enzymes and hormones, as well as the excretion of undesirable by -products, especially when they are in areas such as kidneys and sweat glands. The epithelial lining along the lungs help spread oxygen in all parts of the body. Special epithelial tissues around sensory organs such as eyes, nose and tongue are made with nerve endings to increase sensitivity.

These cells are categorized as lining or glandular epithelium cells. The epitheliums also protect the organs by coating the basement membrane of the cell, others protectThe felt leaf that prevents foreign bodies from the invasion of healthy organs. On the other hand, gland epithelial cells annoy glands such as sweat and mammary glands.

The epithelial lining cells are further classified as simple or stratified epithelials. The simple type has only one layer of cells and the stratified species consists of several cell layers in the range of three to seven layers. Stratified cells usually occur on organs that can experience severe attacks from chemical reactions or foreign bodies, so the organs are not affected, even if one layer of epithelial cells is destroyed. The epithelial cell can also take different shapes, depending on its location and function: flat, cube or column shape.

epithelial cells are usually designed to have no blood vessels so there is no physical pain when they are exfolted and regenerated constantly, not only fromSkin, but from all organs that have epithelium. Urine can be a means of secreting these cells from the body, so it is normal for these cells to be microscopically observed during urine analysis. However, increased amounts of epithelial cells may indicate problems such as bladder or urinary tract infection. Urine, which is unusually cloudy and darker colored, can cause some concerns and the need for thorough urine analysis.