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The lines of defense in the immune system, second line of defense - Coggle…
The lines of defense in the immune system
phagocytes
Neutrophils
patrol the organisms
trap and kill pathogens
Macrophages
detects harmful bacteria
give antigens to T-cells
activates other cells
Lymphocytes
B cells
memory b cell
form memory cells
remember the pathogen
Plasma b cell
Produce antibodies
bind to infections they've seen before
helps kill them faster
T cells
Killer t cells
kill host cells
produce cytokines
Helper t cells
activate B cells
activate T cells
NK cells
Kill infected cells
check cells for infection
The first line of defense
Skin
blocks the pathogens from the outside
nose hairs
Trap pathogens
Third line of defense
How you can defend
cover your nose when you sneeze
wash your hands frequently
clean surfaces you use daily
Normal white blood cells
attack pathogens
Protects bloodcells
releases toxic chemicals on the pathogen when killed
second line of defense