Students should be able to describe the non-specific defence systems of the human body against pathogens, including the:
- skin
- nose
- trachea and bronchi
- stomach.
Students should be able to explain the role of the immune system in the defence against disease.
If a pathogen enters the body the immune system tries to destroy the pathogen.
White blood cells help to defend against pathogens by:
- phagocytosis
- antibody production
- antitoxin production.