Calcium and Phosphorus

Which of the following is the primary form in which calcium is stored in bone?

What is the normal range for total plasma calcium concentration?

Which of the following is NOT a function of calcium in the body?

What percentage of total plasma calcium concentration is bound to protein?

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

Which organ is primarily responsible for the production of 1,25-dihydroxyvitamin D?

What is the role of the GI tract in calcium and phosphate homeostasis?

What is the hormonal response to hypocalcemia?

Which hormone increases plasma [Ca2+] and decreases plasma [Pi]?

Which hormone directly acts on the parathyroid glands and indirectly regulates plasma [Ca2+] through a negative feedback mechanism?

Which hormone decreases plasma [Ca2+] and [Pi]?

Which hormone stimulates the synthesis of 1,25(OH)2D3 in the kidney?

Which hormone is classified as a steroid hormone and is the active form of Vitamin D?

Which of the following is NOT a source of vitamin D?

Which form of vitamin D is more effective: D2 or D3?

What is the desirable concentration of 25(OH) D3 in the body?

What is the main role of calcitriol in the body?

What effect does calcitonin have on bone resorption?

Which of the following is the key factor that determines the threshold voltage to fire an action potential?

Which of the following is the treatment for rickets?

What is the most common metabolic bone disease with significant morbidity and mortality?

What is the expected effect of blocking the Ca-sensing receptor (CaSR) with an antiCaSR antibody?