Hematopoiesis and Blood Cell Types

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Questions and Answers

Which cells are the progenitors for all cells that arise in the blood?

  • Hematopoietic stem cells (correct)
  • Platelets
  • Red blood cells
  • White blood cells

Where does hematopoiesis primarily take place?

  • Spleen
  • Kidney
  • Bone marrow (correct)
  • Liver

What is the hormone that stimulates red blood cell production?

  • Cortisol
  • Thyroxine
  • Insulin
  • Erythropoietin (EPO) (correct)

What is the lifespan of a red blood cell?

<p>120 days (D)</p>
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Where are old red blood cells eliminated from the body?

<p>Spleen (B)</p>
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Which cells produce the hormone erythropoietin?

<p>Peritubular cells in the kidney (B)</p>
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What is the function of mature white blood cells?

<p>Host defense (A)</p>
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What happens to iron in hemoglobin when old red blood cells are phagocytosed?

<p>It is recycled for use in new red blood cells (A)</p>
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What is the lifespan of a red blood cell?

<p>120 days (D)</p>
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How much blood does an adult male have?

<p>5.5 Liters (D)</p>
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