Host Defense Module: Understanding Immune System Physiology
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Questions and Answers

Which property allows leucocytes to squeeze through narrow pores in the walls of capillaries?

  • Chemotaxis
  • Motility
  • Diapedesis (correct)
  • Margination
  • Which leucocytes are important in inflammation and possess properties of margination, diapedesis, motility, chemotaxis, and phagocytosis of bacteria?

  • Monocytes
  • Neutrophils (correct)
  • Basophils
  • Eosinophils
  • Which leucocytes are highly phagocytic for bacteria and large particles, and are called tissue macrophages?

  • T-lymphocytes
  • Monocytes (correct)
  • B-lymphocytes
  • Eosinophils
  • Which leucocytes increase in allergic reactions and parasitic infestation?

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

    Which leucocytes are not phagocytic but synthesize heparin and histamine?

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

    What is the main goal of the host defense module?

    <p>Understanding the physiology of the immune system</p> Signup and view all the answers

    What is the physiologic function of the immune system?

    <p>Defense against infectious microbes</p> Signup and view all the answers

    What is the normal range of leucocytic count?

    <p>4000-11000/mm3</p> Signup and view all the answers

    Where are granular leucocytes, monocytes, and few lymphocytes formed?

    <p>Bone marrow</p> Signup and view all the answers

    Why are there significantly more red blood cells (RBCs) than white blood cells (WBCs)?

    <p>Life span of WBCs is short but that of RBCs are long</p> Signup and view all the answers

    Which type of immunity mediates the early defense against microbes?

    <p>Innate immunity</p> Signup and view all the answers

    What is the normal range of leucocytic count?

    <p>4000-11000/mm3</p> Signup and view all the answers

    Where are lymphocytes partially formed?

    <p>Lymph tissues</p> Signup and view all the answers

    Which type of leucocyte has a short life span in the circulation?

    <p>Granular leucocytes</p> Signup and view all the answers

    What is the main physiological function of the immune system?

    <p>Defense against infectious microbes</p> Signup and view all the answers

    What is the term for the property of leucocytes to be attracted to the endothelial surface and roll along it?

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

    Which leucocytes are not phagocytic but synthesize heparin and histamine?

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

    What is the term for the property of leucocytes to squeeze through narrow pores in the walls of capillaries?

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

    Which leucocytes increase in allergic reactions and parasitic infestation?

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

    What type of movement do granulocytes have due to the development of pseudopodia?

    <p>Amoeboid movement</p> Signup and view all the answers

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