The Second Line Of Defence. Rachel Payne. If the first line of defence, the skin fails, there is a secondary line of defence to protect your body These are made up of different types of white blood cells. Neutrophils. Neutrophils attack bacteria.
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If the first line of defence, the skin fails, there is a secondary line of defence to protect your body
These are made up of different types of white blood cells
Neutrophils attack bacteria
They are like soldiers on a battlefield that rush to the enemy but get killed easily
Each T helper marks each type of pathogen
They mark each pathogen and give signals for other cells
T helper cells are like bosses
They punch holes in the walls of pathogen cells so the contents ooze out
These are the killer cells
Means ‘big eater’
These cells clean up the mess of dead cells
These are like spies
If they find an invading pathogen they bring back evidence to the T helper cells
They produce antibodies which lock onto the antigen of invading bacteria
Once the infection is gone, the white blood cells need to calm down to prevent getting damaged.
The suppressor cells slow down or turn off the immune system