Bone and Joint Disorders Quiz
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Questions and Answers

What is the function of the oxyphil cells in the parathyroid glands?

  • Enhance renal reabsorption of calcium
  • Control plasma Ca2+ levels
  • Produce parathyroid hormone (PTH)
  • Regulate calcium homeostasis (correct)
  • Where is the Ca2+-Sensing Receptor (CaSR) expressed?

  • Kidneys, thyroid C cells, brain (correct)
  • Bones, intestines, blood
  • Parathyroid glands, liver, lungs
  • Heart, spleen, pancreas
  • Which hormone enhances renal reabsorption of calcium?

  • PTH-related peptide (PTHrP)
  • Calcitonin
  • Parathyroid hormone (PTH) (correct)
  • Calcitriol
  • What is the main function of Calcitriol (1, 25dihydroxycholecalciferol/Vitamin D3)?

    <p>Enhances intestinal absorption of calcium</p> Signup and view all the answers

    Which hormone is very sensitive to small changes in serum calcium concentration?

    <p>Parathyroid hormone (PTH)</p> Signup and view all the answers

    What is the main function of parathyroid hormone (PTH)?

    <p>Mobilizes calcium from bone</p> Signup and view all the answers

    Where is the Ca2+-Sensing Receptor (CaSR) expressed?

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

    Which hormone plays a significant role in calcium balance in adults?

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

    What is the primary function of calcitriol (Vitamin D3)?

    <p>Promotes calcium absorption in the intestines</p> Signup and view all the answers

    What is the function of oxyphil cells in the parathyroid glands?

    <p>Unknown function</p> Signup and view all the answers

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