B6 slide 2 Flashcards
1
Q
What are defence systems?
A
Structures and mechanisms we have to prevent pathogens entering the body, and to fight them off if they do enter.
Includes non-specific defences (act on any pathogen) and specific defences (target the particular pathogen you’ve been infected by).
2
Q
What is mucus?
A
A sticky substance produced by many epithelial (surface-covering) tissues in the body, to trap dust particles and microorganisms so they can’t enter the body.
3
Q
What is an antibody?
A
Chemical produced by white blood cells that destroys specific pathogens.
4
Q
What is an antitoxin?
A
Chemical produced by white blood cells that neutralises specific toxins.
