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How would vitamin D3 deficiency change blood levels of the hormones calcitonin and PTH? Explain

How would vitamin D3 deficiency change blood levels of the hormones calcitonin and PTH? Explain

Science   Anatomy-And-Physiology   
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How would vitamin D3 deficiency change blood levels of the hormones calcitonin and PTH? Explain

A person with a vitamin D3 deficiency would not be able to effectively absorb calcium from the digestive tract, leading to a lack of calcium in the blood. The drop in calcium in the blood will cause release of PTH to sustain homeostasis. The PTH, in turn, would stimulate osteoclasts to release enough calcium from the bone to keep proper levels of calcium in the blood. Levels of calcitonin would decrease, because release of this hormone is triggered by high blood calcium levels.

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