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.
