Podcast
Questions and Answers
Which hormone increases plasma [Ca2+] and decreases plasma [Pi] levels?
Which hormone increases plasma [Ca2+] and decreases plasma [Pi] levels?
- Vitamin D
- Parathyroid hormone (PTH) (correct)
- Glucocorticoids
- Calcitonin
What is the active form of Vitamin D?
What is the active form of Vitamin D?
- 1,25(OH)2D3. (correct)
- Vitamin D-binding protein (DBP)
- 25(OH) D3
- 1α-hydroxylase
Which hormone decreases plasma [Ca2+] and [Pi] levels?
Which hormone decreases plasma [Ca2+] and [Pi] levels?
- Parathyroid hormone (PTH)
- Thyroid hormones
- Calcitonin (correct)
- Vitamin D
Which hormone increases plasma [Ca2+] and [Pi] levels?
Which hormone increases plasma [Ca2+] and [Pi] levels?
Which of the following is NOT a function of PTH (parathyroid hormone)?
Which of the following is NOT a function of PTH (parathyroid hormone)?
Which of the following is responsible for the regulation of PTH secretion?
Which of the following is responsible for the regulation of PTH secretion?
What is the active form of vitamin D?
What is the active form of vitamin D?
What is the primary response to hypocalcemia?
What is the primary response to hypocalcemia?
Which of the following is the key factor that determines the threshold voltage to fire an action potential in the presence of hypocalcemia?
Which of the following is the key factor that determines the threshold voltage to fire an action potential in the presence of hypocalcemia?
What is the most common cause of rickets in a growing person?
What is the most common cause of rickets in a growing person?
What is the characteristic feature of osteoporosis?
What is the characteristic feature of osteoporosis?
What is the most expected effect of treating animals with an antiCaSR (Ca-sensing receptor) antibody to block CaSR?
What is the most expected effect of treating animals with an antiCaSR (Ca-sensing receptor) antibody to block CaSR?
Which form of calcium is physiologically active?
Which form of calcium is physiologically active?
What percentage of total plasma calcium concentration is bound to protein (albumin)?
What percentage of total plasma calcium concentration is bound to protein (albumin)?
Which of the following actions is NOT regulated by vitamin D?
Which of the following actions is NOT regulated by vitamin D?
How does calcitriol increase calcium absorption in the small intestine?
How does calcitriol increase calcium absorption in the small intestine?
What effect does calcitonin have on bone resorption?
What effect does calcitonin have on bone resorption?
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