immune system
- Created by: Ailbhe
- Created on: 06-03-14 09:21
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- Stress and the Immune System
- the immune system is out main defence against infection by foreign agents like bacteria and viruses
- anything which stimulates a response from the immune system is called an antigen
- the immune system is defensive and attacks antigens using both cells and proteins called antibodies =
- the B cell finds an antigen which matches its receptors
- it waits until it is activated by a helper T cell
- then the B cell divides to produce plasma and memory cells
- Plasma cell produce antibodies that attach to the current type of innvader
- 'Eater cells' prefer intrudes marked with antibodies and 'eat' loads of them
- if the same intruder invades again memory cells help the immune system to activate much faster
- 'Eater cells' prefer intrudes marked with antibodies and 'eat' loads of them
- Plasma cell produce antibodies that attach to the current type of innvader
- then the B cell divides to produce plasma and memory cells
- it waits until it is activated by a helper T cell
- the immune system is out main defence against infection by foreign agents like bacteria and viruses
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