Question

Explain Epithelial tissue of animals. please give full reason of answer and give some Images also compulsory.​

Answer 1

There are three principal shapes of epithelial cell: squamous, columnar, and cuboidal. These can be arranged in a single layer of cells as simple epithelium, either squamous, columnar, or cuboidal, or in layers of two or more cells deep as stratified (layered), or compound, either squamous, columnar or cuboidal. In some tissues, a layer of columnar cells may appear to be stratified due to the placement of the nuclei. This sort of tissue is called pseudostratified. All glands are made up of epithelial cells. Functions of epithelial cells include secretion, selective absorption, protection, transcellular transport, and sensing

Epithelial layers contain no blood vessels, so they must receive nourishment via diffution of substances from the underlying connective tissue, through the basement membranes..

cell junctions are especially abundant in epithelial tissues.

hope this helps you..

Answer 2

Answer:

Epithelial tissue (Epithelium)

•It is the covering or protective tissue of animals.

• Made up of tightly packed cell which form

continuous layer with no intercellular spaces .

• Separated from underlying tissue by fibrous

basement membrane.

• The permeability of epithelial cells regulate the

exchange of material between body and

environment.