Composition of Blood and Leukocyte Classification Quiz
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Questions and Answers

Which component makes up about 44% of the sample in centrifuged blood?

  • Plasma
  • Erythrocytes (correct)
  • Leukocytes
  • Platelets
  • What is the classification for neutrophils, eosinophils, and basophils?

  • Lymphocytes
  • Phagocytes
  • Monocytes
  • Granulocytes (correct)
  • Which leukocytes are polymorphonuclear?

  • Monocytes
  • Eosinophils
  • Lymphocytes
  • Neutrophils (correct)
  • What component is the straw-colored liquid at the top of the tube after centrifugation?

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

    Which cytokine stimulates the differentiation of formed elements of blood from bone marrow stem cells?

    <p>Erythropoietin (EPO)</p> Signup and view all the answers

    Which leukocyte classification includes monocytes and lymphocytes?

    <p>Non-granulocytes</p> Signup and view all the answers

    Where do granulocytes and monocytes primarily develop?

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

    Which leukocyte is a non-phagocyte?

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

    Stem cell factor (SCF) is a principal cytokine stimulating differentiation during which process?

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

    Which leukocyte makes up about 62% of the total leukocytes and is involved in bacterial infection responses?

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

    Which leukocyte has weak phagocytic activity, is active against parasites, and helps decrease inflammation in allergic reactions?

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

    Which leukocyte is similar to mast cells and releases histamine, bradykinin, serotonin, heparin, and other substances involved in allergic reactions?

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

    Which type of immunity includes non-specific defense mechanisms such as skin, gastric acid, neutrophils, and macrophages?

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

    Which type of immunity involves circulating antibodies and activated T cells?

    <p>Acquired Immunity</p> Signup and view all the answers

    Which type of cells originate from the bone marrow and secrete antibodies?

    <p>B-Cells</p> Signup and view all the answers

    What is the function of IgG, the most common type of antibody?

    <p>Crosses placenta</p> Signup and view all the answers

    Which immunoglobulin is first produced and activates complement?

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

    Where is IgA found in the body?

    <p>Tears, bronchiole secretions, saliva</p> Signup and view all the answers

    What is the shape of an antibody?

    <p>Y-shaped</p> Signup and view all the answers

    What are the two heavy chains and two light chains of an antibody responsible for?

    <p>Determining the type of antigen it can bind to</p> Signup and view all the answers

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