Explain how the epithelial is adapted for its functions.
In this question you should point out the structural modifications of epithelial tissue to suit the different functions.
- One cell thick reduce diffusion distance in alveoli, kidney tubules, and blood capillaries
- Flattened, plate-like squamous cells provides smooth surface for easy flow of materials along the tissue, e.g. blood capillaries
- Secretory cells secrete hormones and enzymes e.g. in thyroid gland and chief gland
- Microvilli increase absorptive surface
- Transitional epithelium allows distension of bladder
- Stratified epithelia offer protection from friction
- Ciliated epithelia allow movement of particles example dust in trachea and ova in fallopian tube
- Deposit of keratin allows protection
- Pseudo stratified for stretching
CATEGORIES Bio Questions and answers
TAGS Dr. Bbosa Science