Start by creating a new file named âweb_server.jsâ. Insert the following code into the file and save it. To start the server, type the command shown below. If everything works properly, you will see a message that the server is listening.
Epithelia are classified on the basis of the number of cell layers and the shape of the cells in the surface layer. * If there is only one layer of cells in the epithelium, it is designated simple. * If there are two or more layers of cells, it is termed stratified.* Cells in the surface layer are, as a rule, described according to their height as squamous (scale-or plate-like), cuboidal or columnar.Examine each of the basic types of cells so that you get an understanding for how the layers are organized and how they are named.pithelia are classified on the basis of the number of cell layers and the shape of the cells in the surface layer. * If there is only one layer of cells in the epithelium, it is designated simple. * If there are two or more layers of cells, it is termed stratified.
The principle structural types are simple and stratified. Simple epithelium has only one layer of cells, while stratified epithelium has two or more layers. The form and function classifications of epithelial tissue are cuboidal, squamous, and columnar. rare type of this tissue, stratified columnar epithelium, is only found in a few places in the body, including parts of the anus, conjunctiva in the eye, uterus, and pharynx. Epithelial tissue is classified in two ways: based on structure, and based on form and function.