BMS 201: Blood Components & Hemopoiesis Quiz
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Questions and Answers

What is the process called by which mature blood cells are continuously replaced with stem cells in hemopoietic organs?

  • Hematocrit value
  • Erythropoiesis
  • Pluripotential hemopoietic stem cells
  • Hemopoiesis (correct)

    • Which of the following components is absent in RBCs?

  • Peripheral membrane proteins (correct)
  • Antigenic sites for blood grouping
  • Spectrin, Actin, and Ankyrin
  • Integral membrane proteins

    • Where does postnatal hemopoiesis primarily occur?

  • Adipocytes
  • Red bone marrow and lymphatic organs (correct)
  • Hematopoietic cords
  • Blood sinusoids

    • What is the function of pluripotential hemopoietic stem cells?

    <p>Differentiation into precursor and progenitor cells</p> Signup and view all the answers

    Which type of cell has antigenic sites for blood grouping?

    <p>Mature blood cells</p> Signup and view all the answers

    Which component is found in the connective tissue stroma of bone marrow?

    <p>Macrophage and fat cells</p> Signup and view all the answers

    Which type of bone marrow has a high content of fat cells and serves as a storage of fats?

    <p>Yellow inactive bone marrow</p> Signup and view all the answers

    What is the main importance of red active bone marrow?

    <p>Production of blood cells</p> Signup and view all the answers

    Where is the yellow inactive bone marrow typically located in adults?

    <p>In the bone diaphysis of long bones</p> Signup and view all the answers

    What is the main function of hematopoietic stem cells and developing blood cells in the hematopoietic cords?

    <p>Production of blood cells</p> Signup and view all the answers

    What is the capability of pluripotent hematopoietic stem cells?

    <p>Self-renewal and slowly proliferating</p> Signup and view all the answers

    Which type of bone marrow has a high content of Hb in RBCs and is found in most of the marrow in the fetus?

    <p>Red active bone marrow</p> Signup and view all the answers

    What is the role of multipotent lymphoid stem cells?

    <p>Production of lymphocytes which migrate to lymphatic organs to proliferate and differentiate</p> Signup and view all the answers

    What do progenitor cells, also known as colony forming units (CFUs), do?

    <p>Give rise to precursor cells (-blast) and mature cells with clear morphologic differentiation &amp; no mitotic activity.</p> Signup and view all the answers

    What is a common characteristic shared by stem cells, progenitor cells, and precursor cells (-blast)?

    <p>No mitotic activity.</p> Signup and view all the answers

    What are the distinguishing characteristics of basophil erythroblasts compared to polychromatophil erythroblasts?

    <p>Differ in size, cytoplasm, and nucleus.</p> Signup and view all the answers

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