If blood calcium levels drop below 8.5 mg/dL which hormone(s) is likely to be activated?
A. parathyroid hormone
B. calcitriol
C. calcitonin
D. estrogen
E. both calcitriol and parathyroid hormone
Preview next quiz:
What is the correct sequence of steps in bone repair?
1. Cartilage in the external callus is replaced by bone
2. A hematoma occurs
3. An internal callus forms at the site of injury
4. Osteoclasts and osteoblasts remodel the bone at the site of repair
A. 4,2,3,1
B. 2,1,3,4
C. 2,3,1,4
D. 1,2,3,4
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