Describe the structure and function of different types of epithelial tissues.

Question:

Describe the structure and function of different types of epithelial tissues. Draw well labelled diagrams.

Solution:

1. Protection: Surface epithelium lying over the skin protects the body from drying up, microbes, chemicals and injury. A similar function of protection is carried out by epithelium lining mouth, nasal tract and alimentary canal.

2. Absorption: Some epithelia have become specialised for absorption, e.g., intestinal mucosa.

3. Epithelium lining the different parts of uriniferous tubules takes part in ultrafiltration, secretion and reabsorption to produce urine.

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