Anatomy and Physiology: Proximal Convoluted Tubule and Henle's Loop
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Questions and Answers

Which segment of the nephron reabsorbs nearly all of the essential nutrients and 70-80% of electrolytes and water?

  • Proximal Convoluted Tubule (PCT) (correct)
  • Distal Convoluted Tubule (DCT)
  • Collecting Duct
  • Loop of Henle

    • What is the role of the ascending limb of the loop of Henle?

  • Actively transports electrolytes (correct)
  • Secretes ammonia into the filtrate
  • Reabsorbs water actively
  • Allows passive transport of water

    • What is the permeability characteristic of the descending limb of the loop of Henle?

  • Permeable to water but impermeable to electrolytes
  • Impermeable to water (correct)
  • Permeable to electrolytes only
  • Impermeable to both water and electrolytes

    • Which structure helps in maintaining the pH and ionic balance of the body fluids by selective secretion of hydrogen ions and potassium ions?

    <p>Proximal Convoluted Tubule (PCT)</p> Signup and view all the answers

    What contributes to the dilution of the concentrated filtrate as it moves upward?

    <p>Active transport of electrolytes in the ascending limb</p> Signup and view all the answers

    What is the main function of the descending limb in the loop of Henle?

    <p>Reabsorption of water</p> Signup and view all the answers

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