Osteoporosis is most common in elderly women because of the lack of which would otherwise inhibit exercise; osteoblast activity dietary calcium; estrogen production osteoblasts; osteoclast activity estrogen; osteoclast activity parathyroid hormone; osteocyte activity
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Osteoporosis result from which of the followings? A decline of osteoblast activity while osteoclast activity continues at expected levels A decline of osteoclast activity while osteoblast activity continues at expected levels An increase in osteocyte activity while osteoblast activity continues at expected levels An increase in osteocyte activity while osteoclast activity continues at expected levels
Sri K.
In bone remodeling and homeostasis, parathyroid hormone increases osteocyte activity relative to osteoclast activity, removing ECM and decreasing blood Ca++ levels. It also increases osteoclast activity relative to osteoblast activity, removing ECM and increasing blood Ca++ levels. Additionally, it increases osteoblast activity relative to osteoclast activity, removing ECM and increasing blood Ca++ levels. However, it decreases osteoclast activity relative to osteoblast activity, removing ECM and decreasing blood Ca++ levels. Lastly, it increases osteoblast activity relative to osteocyte activity, removing ECM and decreasing blood Ca++ levels.
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Increase in blood Ca2+ stimulates __________ secretion, which leads to __________. growth hormone; increased osteoblast activity parathyroid hormone; increased osteoclast activity Thyroid hormone; less urinary calcium excretion calcitriol; more urinary phosphate excretion calcitonin; more calcium reabsorption
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