Defence mechanisms
- Created by: Narey7Emily97
- Created on: 17-12-13 17:58
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- Defence mechanisms
- Non-specific
- do not distinguish between one type of pathogen and another, but respond to all of them in the same way
- The mechanisms act immediately and take two forms
- a barrier to the entry of pathogens
- phagocytosis
- Specific
- do distinguish between different pathogens
- responses are less rapid but provide long lasting immunity
- The responses involve a type of whit blood cell called a lymphocyte and take place in two forms
- cell mediated responses involving T lymphocytes
- humoral responses involving B lymphocytes
- Non-specific
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