Cardiovascular System Functions and Blood Components Quiz
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Questions and Answers

What is the approximate diameter of a red blood cell (RBC)?

  • 15 µm
  • 8 µm (correct)
  • 12 µm
  • 5 µm
  • Which organelle is missing in red blood cells (RBCs)?

  • Endoplasmic reticulum
  • Golgi apparatus
  • Mitochondria
  • Nucleus (correct)
  • Where does the production of red blood cells (erythropoiesis) primarily occur?

  • Spleen
  • Liver
  • Kidney
  • Red bone marrow (correct)
  • What is the average lifespan of a red blood cell in circulation?

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

    What is the function of platelets in the human body?

    <p>Prevent blood loss by forming clots</p> Signup and view all the answers

    Which of the following is NOT a type of granulocyte?

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

    Which component contributes to the prevention of blood loss by initiating vasoconstriction?

    <p>Smooth muscle damage</p> Signup and view all the answers

    In the chemical clotting cascade, what is the enzyme responsible for converting fibrinogen to fibrin?

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

    What are the functions of blood in the cardiovascular system?

    <p>Transportation, Regulation, Protection</p> Signup and view all the answers

    Which component of blood is responsible for clotting?

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

    Which type of stem cell is responsible for the production of red blood cells?

    <p>Myeloid stem cell</p> Signup and view all the answers

    What is the function of leukocytes in the blood?

    <p>Protect against infections</p> Signup and view all the answers

    Which type of formed element in blood is involved in oxygen transport?

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

    What is the term for the liquid part of blood that contains various proteins and water?

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

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