Immune System Overview

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Questions and Answers

What defines the non-specific immune system?

  • It requires previous exposure to pathogens to activate.
  • It specifically targets pathogens with antibodies.
  • It primarily involves memory cells for future infections.
  • It includes barriers like skin and mucous membranes. (correct)

Which of the following statements is true about the specific immune system?

  • It operates mainly through physical barriers.
  • It acts slowly, taking days to respond.
  • It generates memory cells for a faster response to future infections. (correct)
  • It does not adapt based on previous infections.

What is a characteristic of the non-specific immune system?

  • It creates long-lasting immunity.
  • It is activated only after exposure to specific antigens.
  • It involves an immediate response to pathogens. (correct)
  • It utilizes lymphocytes for targeted attacks.

What role do neutrophils play in the immune system?

<p>They provide a rapid response in the non-specific immune system. (B)</p> Signup and view all the answers

How does the specific immune system differ from the non-specific immune system?

<p>It is slower to respond compared to the non-specific system. (C)</p> Signup and view all the answers

Flashcards

Non-specific immune system

A part of the immune system that provides general defense against pathogens through barriers and cells.

Specific immune system

A part of the immune system that targets specific pathogens by creating antibodies and memory cells.

Antibodies

Proteins produced by the immune system to identify and neutralize pathogens.

Memory cells

Cells that remember past infections to improve future immune responses.

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Pathogens

Microorganisms such as bacteria and viruses that can cause disease.

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Study Notes

Immune System Summary

  • The immune system has two main parts: nonspecific and specific.
  • The nonspecific immune system acts as a rapid defense against pathogens. It includes physical barriers like skin and mucous membranes, and cells like neutrophils.
  • The specific immune system is more targeted, creating antibodies and memory cells (lymphocytes) to respond more quickly to repeated infections.

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