Immune System Cells and Functions
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Questions and Answers

What is the primary function of eosinophils in the immune response?

  • Phagocytosing small debris and microbial infections
  • Releasing antibodies and cytotoxic chemicals
  • Releasing cytotoxic chemicals to damage microbial cells (correct)
  • Causing massive vasodilation in allergic reactions

    • Which of the following white blood cells plays a role in immunological memory?

  • Eosinophils
  • Lymphocytes (correct)
  • Basophils
  • Neutrophils

    • What is the process by which neutrophils and monocytes squeeze through the pores of capillaries to reach the site of infection?

  • Chemotaxis
  • Phagocytic action
  • Phagocytosis
  • Diapedesis (correct)

    • What type of pathogens are primarily attacked by eosinophils?

    <p>Large pathogens, such as parasites and worms</p> Signup and view all the answers

    What is the primary function of basophils in the immune response?

    <p>Causing massive vasodilation in allergic reactions</p> Signup and view all the answers

    What is the process by which neutrophils and macrophages engulf and digest pathogens and foreign substances?

    <p>Phagocytosis</p> Signup and view all the answers

    What is the primary mechanism by which antibodies facilitate phagocytosis?

    <p>By binding to pathogens and presenting them to neutrophils and macrophages</p> Signup and view all the answers

    What characteristic of body cells helps prevent neutrophils and macrophages from attacking them?

    <p>Presence of a smooth surface</p> Signup and view all the answers

    What is the function of the Fc region of an antibody?

    <p>Binding to Fc receptors on neutrophils and macrophages</p> Signup and view all the answers

    What is the purpose of the three questions asked by neutrophils and macrophages before attacking a pathogen?

    <p>To avoid autoimmunity</p> Signup and view all the answers

    What is the process by which neutrophils and macrophages recognize and engulf foreign particles or cells?

    <p>Phagocytosis</p> Signup and view all the answers

    What is the function of the Fab region of an antibody?

    <p>Binding to pathogens</p> Signup and view all the answers

    What is the function of macrophages in the spleen?

    <p>To kill encapsulated bacteria</p> Signup and view all the answers

    What happens to the pathogen when contaminated food is ingested?

    <p>It is broken into particles and taken to the liver to be cleaned</p> Signup and view all the answers

    What is the main function of eosinophils?

    <p>To combat parasitic infections</p> Signup and view all the answers

    What is the term for the engulfment of pathogens by macrophages?

    <p>Phagocytosis</p> Signup and view all the answers

    What is the name of the system that includes monocytes, macrophages, and specialized endothelial cells?

    <p>Reticuloendothelial system</p> Signup and view all the answers

    What happens to macrophages after they have eliminated an infection?

    <p>They die</p> Signup and view all the answers

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