Choose the correct order of the phrases below to explain the response of the body to a decline in serum calcium levels. Choose the BEST answer. 1. increased release of PTH 2. decreased release of PTH 3. increased synthesis of calbindin 4. increased synthesis of 1,25-(OH)2 D3 5. increased bone absorption 6. increased calcium absorption 7. decreased bone resorption 8. increased calcium excretion 9. increased bone resorption
A) 1, 5, 4, 8
B) 1, 3, 5, 9
C) 2, 3, 9, 6
D) 1, 4, 3, 6
Question 2
The basal metabolic rate declines 1 to 2 percent per decade in part because ____.
A) lean muscle mass and thyroid hormones decrease
B) blood pressure generally increases
C) lipid oxidation is increased
D) the immune system becomes more active