Questions and Answers
Which type of immunity is non-specific and common in all humans?
Innate immunity
What type of immunity is dependent on individual characteristics?
Acquired immunity
Which component of the immune system is specific to each individual?
Acquired immunity
Which type of immunity is not dependent on previous exposure to antigens?
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Which type of immunity is present at birth and provides immediate protection?
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Study Notes
Introduction to Immunology
- Immunology is the study of immunity and the immune system.
- Immunity refers to the body's defense against infections and diseases.
- The immune system is a complex network of cells, tissues, and organs that work together to defend the body.
Types of Immunity
- Non-specific (innate) immunity: the body's first line of defense against infections, providing immediate protection.
- Specific immunity (adaptive): the body's second line of defense, providing long-term protection through the activation of immune cells.
Active and Passive Immunity
- Active immunity: the body produces its own antibodies in response to an antigen, providing long-term protection.
- Passive immunity: the body receives antibodies from an outside source, providing temporary protection.
Immune Response
- Humoral immune response: involves the production of antibodies to fight pathogens in bodily fluids.
- Cellular immune response: involves the activation of immune cells to fight pathogens within cells.
Key Terms
- Antigen: a foreign substance that triggers an immune response.
- Immune response: the body's reaction to the presence of an antigen.
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