Epithelial tissue


 
 
Concept Explanation
 

Epithelial Tissue

Animal Tissues:

Tissues consist of a group of cells with similar structure performing similar function. Tissues constitute organs. Animal tissues are of four major types :  epithelial, or covering tissue; connective, or supportive tissue; muscular, or contractile tissue and nervous tissue.    

Epithelial Tissue:

This is the thin protective layer of cells which covers the surface of the body and lines the internal organs. The cells are generally packed close together. The shape of the cells depends on the location and function of the tissue. And based on the shape of the cells, epithelial tissue is classified into four types—squamous, cuboidal, columnar and ciliated. Epithelial tissue originates from the ectoderm. But, epithelial tissue lining the intestine originates from the endoderm.

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Sample Questions
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Question : 1

The functions of __________________ tissue include secretion and absorption. 

Right Option : A
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Question : 2

Which of the following parts of the body will have columnar cells?

Right Option : D
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Question : 3

Tongue, oesophagus and the lining of the mouth are made up of  ___________________ .

Right Option : B
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