Parathyroid Hormone (PTH) Function
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Questions and Answers

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

  • Decreasing calcium absorption in the intestines
  • Decreasing calcium levels in the blood
  • Stimulating the release of calcium from the bones (correct)
  • Promoting phosphorus reabsorption by the kidneys

    • How does parathyroid hormone (PTH) help increase calcium levels in the blood?

  • Increasing calcium absorption in the intestines (correct)
  • Decreasing osteoclast activity in the bones
  • Promoting calcium secretion through urine
  • Decreasing reabsorption of calcium by the kidneys

    • What is the role of vitamin D in relation to parathyroid hormone (PTH) and calcium balance?

  • Vitamin D increases phosphorus levels in the blood
  • Vitamin D is not involved in PTH function
  • Vitamin D contributes to calcium balance along with PTH (correct)
  • Vitamin D decreases PTH secretion

    • Which statement about parathyroid hormone (PTH) and phosphorus levels is true?

    <p>PTH decreases phosphorus excretion through the kidneys</p> Signup and view all the answers

    What happens when serum calcium levels decrease in the blood?

    <p>PTH is released to increase calcium levels</p> Signup and view all the answers

    How do low levels of vitamin D affect calcium balance?

    <p>Contribute to low calcium levels</p> Signup and view all the answers

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