Physiology of Blood 1
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Questions and Answers

What gives arterial blood its bright red color?

  • High viscosity
  • Presence of carbon dioxide
  • Presence of reduced hemoglobin (Hb)
  • Presence of oxyhemoglobin (HbO2) (correct)

    • What is the primary factor contributing to the high viscosity of blood?

  • Low pH
  • Presence of cells (mainly RBCs) and plasma proteins (correct)
  • Presence of carbon dioxide
  • Presence of reduced hemoglobin (Hb)

    • What is the approximate percentage of blood volume occupied by blood cells (RBCs, WBCs, and platelets)?

  • 55%
  • 60%
  • 40%
  • 45% (correct)

    • What is the pH of arterial blood?

    <p>7.4±0.02</p> Signup and view all the answers

    What contributes to the more acidic nature of venous blood compared to arterial blood?

    <p>Presence of carbon dioxide that forms carbonic acid</p> Signup and view all the answers

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