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Innate Immune Response

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Questions and Answers

What is the primary function of inflammation?

To recognize pathogens via shared molecules

To limit the spreading of the invading pathogen and initiate tissue repair (correct)

To initiate tissue repair

To eliminate the initial cause of cell injury

What is a characteristic of innate immunity?

It has long-term memory

It does not improve after exposure to an organism (correct)

It is specific to a particular pathogen

It improves after exposure to an organism

What is an example of a physical barrier that provides innate immunity?

Complement proteins

Phagocytic cells

Natural killer cells

Intact skin (correct)

What is a characteristic of acquired immunity?

It is characterized by long-term memory Signup and view all the answers

What is the function of phagocytic cells in the innate immune response?

To eliminate pathogens through phagocytosis Signup and view all the answers

What is an example of an induced innate immune response?

Inflammatory response Signup and view all the answers

What is the function of cytokines in the inflammatory response?

To mediate the inflammatory response Signup and view all the answers

What is the primary function of the lymphatic system?

To scan interstitial fluid for foreign cells Signup and view all the answers

What is the term for any substance capable of triggering an immune response?

Antigen Signup and view all the answers

What is the main difference between innate and adaptive immune systems?

Innate immunity is nonspecific, while adaptive immunity is specific Signup and view all the answers

What is the role of natural killer cells in the immune system?

To recognize and respond to diseased or damaged cells Signup and view all the answers

What is the primary function of the complement system?

To destroy extracellular pathogens Signup and view all the answers

What is the term for any disease-causing agent?

Pathogen Signup and view all the answers

What is the role of the thymus in the immune system?

To mature immune cells Signup and view all the answers

What is the three-level approach to identifying and destroying foreign cells?

Physical barriers, chemical barriers, and immune responses Signup and view all the answers