MSK Quiz#16, Bone Synthesis and Metabolism

1. A 55-year-old postmenopausal woman visits her physician for a routine check-up. She is concerned about her risk of developing osteoporosis. The physician explains the role of estrogen in bone metabolism. Which of the following best describes the mechanism by which estrogen deficiency after menopause contributes to osteoporosis?

Question 1 of 5

2. A 60-year-old man with chronic kidney disease is found to have secondary hyperparathyroidism. Laboratory tests reveal elevated parathyroid hormone (PTH) levels. PTH acts on various cells involved in bone metabolism. Which of the following is a direct effect of PTH on bone? 

Question 2 of 5

3. A researcher is studying the effects of various hormones on bone synthesis. She is particularly interested in the role of osteoblasts in new bone formation. Which of the following substances is primarily secreted by osteoblasts and is crucial for bone matrix formation? 

Question 3 of 5

4. A 70-year-old woman is diagnosed with osteoporosis and is prescribed a medication that mimics the action of estrogen on bone. This medication is likely to have which of the following effects on osteoclasts? 

Question 4 of 5

5. A patient with primary hyperparathyroidism exhibits high levels of parathyroid hormone (PTH). Which of the following best describes the effect of elevated PTH levels on calcium and phosphate homeostasis in the body? 

Question 5 of 5


 

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