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State the location and function of columnar epithelium? where and how is it modified ? write its function of this modified tissue.

Columnar epithelium

  • Columnar epithelium consists of elongated or column-like cells.

  • These tissues are mainly found in the parts where absorption and secretion occur.

  • Some examples of columnar epithelium are the inner linings of the intestine and stomach.



Modifications of columnar epithelium
 

Ciliated epithelium

  • Ciliated epithelium consists of columnar/cuboidal cells that bear cilia on their surface.

  • The cilia help in the movement of particles in a specific direction over the epithelium.

  • This type of epithelium is present in the respiratory tract.

 

Glandular epithelium

  • Glandular epithelium consists of columnar/cuboidal cells that have become specialised for secretion.

  • When a portion of the epithelial tissue folds inward, glandular epithelium is formed.

  • The function of glandular epitheliu

 

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It is present where absorption and secretion is done like in the innere lining of intestine.

in respiratory tract it also have hair like structure called cilia it is to move the mucus forward in the respiratory tract

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