9.29 Immunity 1 Flashcards
Immunology is the study of:
- the physiologic mechanisms that allow the body to differentiate between self and non-self
AND
- how it reacts when the non-self components are encountered
What does immunity protect the body from?
- infection
- disease
What does failure of immunity result in?
localized or systemic infection or disease
effective immunity =
resistance
What does effective immunity/resistance require?
molecules, cells, and tissues have to work together through various mechanisms to “protect this house!”
Goals of immunity
- prevent infection entirely
OR
- limit the spread of a pathogen
immunity: translation of initial recognition to responses
each response is:
specific to the pathogen
The way the immune system educates itself for if the invader returns again is called
immunologic memory
innate immunity:
types of barriers
- physical
- cellular
- chemical
What are the types of immunity?
- innate
- adaptive/acquired
Where does innate immunity come from?
natural, born with it
Innate immunity helps to mediate the development of _______
adaptive immunity
innate immunity: memory?
NO memory is created with innate immunity
What is the function of innate immunity?
- body’s first line of defense to prevent the entry of pathogens
- CAPABLE OF RESOLVING MOST THREATS!
What does adaptive/acquired immunity have?
- specificity
- memory
