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Questions and Answers

Which cells are the source of parathyroid hormone (PTH)?

  • Osteocytes
  • Chief cells of parathyroid (correct)
  • Renal cells
  • Osteoblasts

    • What is the primary function of PTH?

  • Increase serum magnesium levels
  • Increase serum calcium levels (correct)
  • Increase serum phosphate levels
  • Increase serum potassium levels

    • Which hormone is produced by activating 1α-hydroxylase in the proximal convoluted tubule (PCT)?

  • Calcitriol (correct)
  • PTH
  • PTH-related peptide (PTHrP)
  • Calcitonin

    • Which of the following is the primary regulator of prolactin secretion from the anterior pituitary?

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

    What is the main function of prolactin in females?

    <p>Stimulates milk production in the breasts</p> Signup and view all the answers

    Which of the following can be used in the treatment of prolactinoma?

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

    Which hormone stimulates linear growth and muscle mass through IGF-1 secretion by the liver?

    <p>Growth hormone</p> Signup and view all the answers

    What is the primary function of antidiuretic hormone (ADH)?

    <p>Regulating serum osmolality</p> Signup and view all the answers

    Excess secretion of growth hormone may lead to which condition in adults?

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

    Which hormone regulates blood pressure and serum osmolality?

    <p>Antidiuretic hormone</p> Signup and view all the answers

    Which hormone stimulates linear growth and muscle mass through IGF-1 secretion by the liver?

    <p>Growth hormone</p> Signup and view all the answers

    Which hormone stimulates milk production in the breast and inhibits ovulation in females and spermatogenesis in males?

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

    Excess secretion of growth hormone may cause which condition in adults?

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

    What is the primary regulator of prolactin secretion from the anterior pituitary?

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

    Which hormone has a stronger effect on prolactin regulation than TRH?

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

    Which cells secrete parathyroid hormone (PTH)?

    <p>Chief cells of the parathyroid</p> Signup and view all the answers

    What stimulates the release of PTH?

    <p>All of the above</p> Signup and view all the answers

    What is the primary function of PTH?

    <p>Increase bone resorption to release calcium and phosphate</p> Signup and view all the answers

    Which hormone regulates b1ood pressure and serum osmolality?

    <p>Antidiuretic hormone</p> Signup and view all the answers

    What is the primary function of growth hormone?

    <p>Stimulation of linear growth and muscle mass</p> Signup and view all the answers

    Excess secretion of growth hormone may cause which condition in adults?

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

    Which hormone inhibits ovulation in females and spermatogenesis in males by inhibiting GnRH synthesis and release?

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

    Which hormone stimulates milk production in the breast?

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

    Which of the following can be used in the treatment of prolactinoma?

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

    Which of the following is NOT a function of parathyroid hormone (PTH)?

    <p>Absorb Ca2+ and PO4 3- in the GI system</p> Signup and view all the answers

    Which hormone is commonly increased in malignancies such as squamous cell carcinoma of the lung and renal cell carcinoma?

    <p>Phosphate-Trashing Hormone (PTHrP)</p> Signup and view all the answers

    Which of the following is NOT a primary regulator of parathyroid hormone (PTH) secretion?

    <p>Serum Na+</p> Signup and view all the answers

    Which cells secrete parathyroid hormone (PTH)?

    <p>Chief cells of parathyroid</p> Signup and view all the answers

    What is the primary function of PTH?

    <p>Increase serum calcium levels</p> Signup and view all the answers

    What stimulates the release of PTH?

    <p>Low serum calcium levels</p> Signup and view all the answers

    Which hormone is responsible for regulating blood pressure and serum osmolality?

    <p>Antidiuretic hormone</p> Signup and view all the answers

    What is the primary function of growth hormone?

    <p>Stimulating linear growth and muscle mass</p> Signup and view all the answers

    Excess secretion of growth hormone may cause which condition in adults?

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

    Which hormone inhibits its own secretion by dopamine synthesis and secretion from the hypothalamus?

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

    Which hormone stimulates milk production in the breast and inhibits ovulation in females and spermatogenesis in males by inhibiting GnRH synthesis and release?

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

    Which hormone has a stronger effect on prolactin regulation than TRH (thyrotropin-releasing hormone) does?

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

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