Calcium Levels and Forms Quiz
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Questions and Answers

What is the role of the parathyroid hormone in the body?

  • Supporting oxygen transport in the bloodstream
  • Balancing sodium and potassium levels
  • Controlling calcium and phosphate levels in the blood (correct)
  • Regulating blood glucose levels
  • What happens if three out of the four parathyroid glands are removed?

  • Improved kidney function
  • Transient hypoparathyroidism (correct)
  • Increased blood calcium levels
  • Hypothyroidism
  • Why is complete removal of parathyroid tissue considered lethal?

  • It triggers rapid weight loss
  • Leads to increased bone density
  • Essential for life due to its role in maintaining calcium levels (correct)
  • It causes excessive thirst
  • Where are the parathyroid glands located in the body?

    <p>Immediately behind the thyroid gland</p> Signup and view all the answers

    Which hormone regulates calcium levels along with parathyroid hormone?

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

    What is the main function of calcium that circulates in the blood?

    <p>Supports muscle contraction</p> Signup and view all the answers

    Why is removal of half the parathyroid glands usually well-tolerated?

    <p>Remaining tissue can hypertrophy to compensate</p> Signup and view all the answers

    What percentage of calcium is typically stored in the bone?

    <p>~99%</p> Signup and view all the answers

    Which organ is involved in excreting phosphate from the body under the influence of parathyroid hormone?

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

    Which form of vitamin D metabolites helps regulate calcium levels?

    <p>1,25dihydroxycholecalceferol</p> Signup and view all the answers

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