stratum corneum
Protective covering flat shaped epithelial are called squamous cell .
squamous
1. squamous (flattened) 2. cuboidal (cube-shaped) 3. columnar
Squamous cells are flat and circular shaped. These cells are found in many parts of the body such as the mouth, lips, cervix, and the middle layers of the skin.
Squamous epithelia
Cells can be any shape and it is normal for them to be irregular. In my studies, i have never come across a perfectly shaped cell.
It acts a Save s a protective layer to the plant against injury and drying-out of its inner parts. The shape of the epidermal cells are bricked shaped and has no intercellular spaces. the thick outer cellular walls contain cellulose and pectin which provides protection. Epidermal cells are transparent and contains chloroplast. The epidermis allows sunlight to reach tissues deeper in the plant espescially the leaves and the stem, it protects softer tissues in the plant from mechanical injury.
Epithelial cells take three different shapes. The first is squamous, flattened like pancakes. The second is cuboidal, or cube-shaped. The third is column-shaped, or columnar.
The word squamous refers to the shape of the cell - it means scale shaped and refers to cells that bulge in the middle and taper at the ends. There are many types of cells that are squamous cells. As such, there is no particular protein that is characteristic of squamous cells. They will possess the same set of thousands of basic housekeeping proteins that any cell will possess and supplemented with the dozens or hundreds of proteins that make them a particular kind of squamous cell.
The cheek epithelial cells are flat and irregularly shaped. They are polygonal squamous cells that have a very thin membrane.
bricked
Smooth muscles contain spindle shaped cells.