organisation of the immune system Flashcards
barriers: recall the physical and chemical barriers used by the immune system in host defense
1
Q
what are the 4 types of physical and chemical barriers
A
anatomical, physiological, phagocytic, inflammatory
2
Q
what are the 2 types of anatomical barrier
A
skin, mucous membranes
3
Q
2 features of skin
A
mechanical barrier, acidic environment
4
Q
feature of mucous membranes
A
secretions trap microorganisms, cilia expel
5
Q
what are the 3 types of phsyiological barrier
A
fever, low pH in stomach, chemical mediators
6
Q
name 3 chemical mediators
A
lysozyme, interferons, complement
7
Q
feature of phagocytosis
A
cells ingest material
8
Q
feature of inflammation
A
local vascular permeability increases
