Human Defence Systems

You need to be able to describe the non-specific defence systems of the human body against pathogens, including the:

• skin

• nose

• trachea and bronchi

• stomach.

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.

GCSE REVISION @ WWW.REVISINGSCIENCE.COM

© 2020 by Revising Science

  • w-facebook
  • Twitter Clean
  • w-googleplus