Lecture 1- the role of the immune system Flashcards
1
Q
What was variolation?
A
Take content of postules from infected person and innoculate it into another person to make them immune to it. (18th century)
2
Q
What was the first vaccine?
A
cowpox for small pox
3
Q
What are the stages of infection?
A
- Entry into body (infection)
- Replication and spread
- Disease
- Exit from the body (infect others)
4
Q
Give examples of innate cells?
A
monocyte macrophage neutrophil dendritic cell natural killer cells
5
Q
Phagocytes
A
Must recognise threat. so have receptors on surface.
Engulf and kill pathogens.
6
Q
4 steps of phagocytosis?
A
- Attachment
- Ingestion
- Killing
- Degradation
