Write a note on epithelial tissue
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Epithelium is one of the four basic types of animal tissue, along with connective tissue, muscle tissue and nervous tissue. Epithelial tissues line the outer surfaces of organs and blood vessels throughout the body, as well as the inner surfaces of cavities in many internal organs.
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Explanation:
- Basement membrane is secreted by both epithelium and connective tissue.
- Mucopolysaccharide in basement membrane is present in the form of Hylauronic acid which is composed of 2 components-N acetyglucosamine and glucoronic acid
- In the nephrons of the kidneys, cilia keep the urine moving.
- The keratin is impermeable to water and is also resistant to mechanical abrasion( Scraping) .
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