Endocrinology: Calcium Regulation Quiz
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Questions and Answers

What role does the parathyroid hormone (PTH) play in response to low blood calcium levels?

  • Enhances calcitonin secretion to lower blood calcium
  • Inhibits the absorption of calcium in the intestines
  • Stimulates osteoclast activity to release calcium from bone (correct)
  • Increases osteoblast activity to store more calcium
  • Which of the following is a consequence of hypercalcemia?

  • Skeletal muscle problems (correct)
  • Vitamin D deficiency
  • Osteoporosis
  • Rickets
  • What initial process occurs when UV rays penetrate the skin?

  • The kidney conserves calcium
  • Osteoclast activity is stimulated
  • Vitamin D is converted to its active form
  • Vitamin D becomes water soluble (correct)
  • How does the kidney contribute to calcium homeostasis?

    <p>It conserves calcium from filtration and modifies active Vitamin D</p> Signup and view all the answers

    Which gland is responsible for sensing elevated calcium levels in the bloodstream?

    <p>Thyroid gland</p> Signup and view all the answers

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