Hemolysis of RBCs: Causes and Related Diseases
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Questions and Answers

What is a distinct characteristic of all WBCs?

  • They are only found in the blood
  • They contain hemoglobin
  • They have a nucleus (correct)
  • They are always bilobed

    • What is the main role of neutrophils in the body?

  • To produce histamine
  • To phagocytose foreign particles (correct)
  • To regulate body temperature
  • To produce antibodies

    • What is the typical shape of the nucleus in basophils?

  • Round
  • Multilobed
  • Bilobed
  • S-shaped (correct)

    • What is a function of eosinophils?

    <p>To detoxify foreign proteins</p> Signup and view all the answers

    What is the percentage of neutrophils in the blood?

    <p>50-70%</p> Signup and view all the answers

    What is the function of monocytes after they migrate to tissues?

    <p>To phagocytose foreign particles</p> Signup and view all the answers

    What is a primary function of basophils in the body?

    <p>To contain histamine and cause inflammation</p> Signup and view all the answers

    Where do the majority of lymphocytes originate from?

    <p>Lymph node, thymus, and spleen</p> Signup and view all the answers

    What is the primary function of granulocytes and monocytes in the body?

    <p>To ingest invading organisms by phagocytosis</p> Signup and view all the answers

    What is a characteristic of lymphocytes in the body?

    <p>They have a life span of weeks, months or years</p> Signup and view all the answers

    What is a unique feature of monocytes in the body?

    <p>They are the largest cell in the body</p> Signup and view all the answers

    What is the process by which WBCs move through tissues?

    <p>Ameboid motion</p> Signup and view all the answers

    What is the name of the disease that affects newborns, in which antibodies from the mother destroy red cells in the baby?

    <p>Erythroblastosis fetalis</p> Signup and view all the answers

    What is the average lifespan of a red blood cell in the circulatory system?

    <p>120 days</p> Signup and view all the answers

    What is the main function of the cytoplasmic enzymes in red blood cells?

    <p>To maintain the cell membrane and membrane transport</p> Signup and view all the answers

    What is the shape of an erythrocyte?

    <p>Biconcave disc</p> Signup and view all the answers

    What is the main component of erythrocytes?

    <p>95% of the elements</p> Signup and view all the answers

    What is the result of the decrease in metabolic activity of red blood cells with time?

    <p>They become more rigid and fragile</p> Signup and view all the answers

    What percentage of people in the studied group have the O blood type?

    <p>47%</p> Signup and view all the answers

    What is the major difference between the O-A-B system and the Rh system?

    <p>In the O-A-B system, spontaneous agglutinins occur, whereas in the Rh system, they almost never occur</p> Signup and view all the answers

    What happens to an Rh -ve person if they receive Rh +ve blood by mistake?

    <p>Antibodies will be formed, but only after a second transfusion</p> Signup and view all the answers

    Why are Rh -ve people susceptible to a transfusion reaction?

    <p>Because they have not been previously exposed to the Rh antigen</p> Signup and view all the answers

    What is the function of agglutinins in the Rh system?

    <p>To cause transfusion reactions</p> Signup and view all the answers

    What is the term for the antigen present on RBCs?

    <p>D antigen</p> Signup and view all the answers

    What is the first step in the clotting process?

    <p>Rupture of the vessel or damage to the blood</p> Signup and view all the answers

    What is the role of ionic Ca++ in the conversion of prothrombin to thrombin?

    <p>It is necessary for the conversion of prothrombin to thrombin</p> Signup and view all the answers

    What is the final product of the clotting process?

    <p>Fibrin fibers</p> Signup and view all the answers

    What is the role of thrombin in the clotting process?

    <p>It catalyzes the conversion of fibrinogen to fibrin fibers</p> Signup and view all the answers

    What can lead to the initiation of clotting?

    <p>Trauma to the vascular wall and adjacent tissues</p> Signup and view all the answers

    What is the function of prothrombin activator?

    <p>It causes the conversion of prothrombin to thrombin</p> Signup and view all the answers

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