Introduction to Innate Immunity quiz #3 Flashcards
Introduction to Innate Immunity quiz #3
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What are the main characteristics of inflammation as an innate immune response?
The main characteristics of inflammation include swelling, heat, altered function, redness, and pain. These occur as a coordinated response to foreign antigens or tissue damage. How do the scanning systems and innate effectors function in the second line of defense?
Scanning systems, such as sentinel cells, pattern recognition receptors, and the complement system, detect invading microbes. Innate effectors, including phagocytosis, inflammation, fever, and the interferon response, act to eliminate these identified invaders. How do the first line and second line defenses of innate immunity compare to security measures?
The first line defenses are like security walls preventing entry, scanning systems are like security cameras detecting invaders, and innate effectors are like security soldiers eliminating threats. What is innate immunity and how does it differ from adaptive immunity?
Innate immunity is a set of protective mechanisms present at birth that respond rapidly to a wide range of pathogens without prior exposure. Unlike adaptive immunity, it does not require previous encounters with a pathogen and responds similarly to repeated exposures. List the main characteristics of inflammation as an innate immune response.
The main characteristics of inflammation are swelling, heat, altered function, redness, and pain. These occur as a coordinated response to foreign antigens or tissue damage. What are the two main lines of defense in innate immunity?
The two main lines of defense are the first line, which includes physical and chemical barriers and the microbiome, and the second line, which involves cells that identify and eliminate invaders. How do scanning systems and innate effectors function in the second line of defense?
Scanning systems, such as sentinel cells, pattern recognition receptors, and the complement system, detect invading microbes. Innate effectors like phagocytosis, inflammation, fever, and the interferon response act to eliminate these identified invaders. What analogy is used to describe the roles of the first line, scanning systems, and effectors in innate immunity?
The first line defenses are like security walls preventing entry, scanning systems are like security cameras detecting invaders, and innate effectors are like security soldiers eliminating threats. What is the role of the complement system in innate immunity?
The complement system is part of the scanning systems and can trigger phagocytosis and inflammation, helping to eliminate invading microbes. Why is the innate immune response considered non-specific?
It is considered non-specific because it responds in a similar way to many different types of pathogens and does not adapt or change with repeated exposures.
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