Question

Which is not a mechanical /physiological protection layer:

1. Epithelium
2. Interferon
3. Vomiting, cough
4. Increased body temperature
5. Oxygen pressure

Answer 1

E, Oxygen pressure.

                    Epithelial tissue covers the body, and gives protection to underlying structures from damage. Vomiting and cough are the protective reflexes for any abnormality in respiratory and digestive system. Increased body temperature and interferons are the body's defence mechanisms, against entry of any foreign bodies or any injury.