Question

What is Epithelial Tissue?

Answer 1

Epithelial tissue is the simplest tissue, it is protective tissue of the animal body (as epidermis of plants). The cells of this tissues are tightly packed and they form a continuous sheet. Cells of epithelium contain very little or no intercellular matrix. The tissue covers most organs and cavities within the body. It also forms a barrier to keep different body system separate.

The skin and lining of buccal cavity, blood vessels, alveoli (of lungs) and kidney tubules are made of epithelial tissues.

Types of epithelium​(epithelial tissue)

1) Squamous epithelium
2) Cuboidal epithelium
3) Columnar epithelium
4)Glandular epithelium.
5) Ciliated epithelium

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Answer 2

There are four basic types of animal tissue. Epithelial tissue is one of them. All the cavities, surfaces of blood vessels and organs of the body are lined with epithelial tissues. These tissues have differently shaped cells. There are columnar cells or column-like cells, cuboidal cells or cube-like cells, and squamous cells or flattened scale-like cells.