epithelial tissue can beSolutionAnswer Epithelial tissue cov

epithelial tissue can be

Solution

Answer:

Epithelial tissue covers the surface of body and lines cavities of body. Blood vessels are absent in this tissue, so it is called as avascular tissue. By diffusion the food material and other nutrients are exchanged.

I) Based on the cell shape it is classified as :

1)Squamous, 2) Columnar, 3) Cuboidal and 4)Transitional.

II) Based on Arrangement of layers, it is classified into:

    1) Simple epithelium : It is further divided into different types: Simple squamous, Simple cuboidal, Noncillated simple columnar, Ciliated simple columnar.

   2) Stratified epithelium : It is further divided into different types:Stratified Simple squamous, Stratified Simple cuboidal,Stratified columnar epithelium and Transitional epithelium.

    3) Pseudostratified columnar epithelum