which one of the following hormones regulate blood calcium and phosphate?
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Parathyroid hormone (PTH) is secreted by the parathyroid glands. Its main action is to mobilize calcium from bone and increase urinary phosphate excretion. 1,25-Dihydroxycholecalciferol is a steroid hormone formed from vitamin D in the liver and kidneys.
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When kidneys do not function properly, extra parathyroid hormone is released in the blood to move calcium from inside the bones into the blood. Chronic kidney disease causes mineral and bone disorder because the kidneys do not properly balance the mineral levels in the body.
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Vitamin K activates proteins that play a role in blood clotting, calcium metabolism and heart health. One of its most important functions is to regulate calcium deposition. In other words, it promotes the calcification of bones and prevents the calcification of blood vessels and kidneys ( 3 , 4 ).
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Vitamin D (ergocalciferol-D2, cholecalciferol-D3, alfacalcidol) is a fat-soluble vitamin that helps your body absorb calcium and phosphorus. Having the right amount of vitamin D, calcium, and phosphorus is important for building and keeping strong bones.
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['calcium: 37 mg.', 'iron: 1.03 mg.', 'magnesium: 25 mg.', 'phosphorous: 38 mg.', 'potassium: 211 mg.', 'zinc: 0.24 mg.']
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['remove waste products from the body.', 'remove drugs from the body.', "balance the body's fluids.", 'release hormones that regulate blood pressure.', 'produce an active form of vitamin D that promotes strong, healthy bones.']
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Lack of Vitamin D will lead to poor calcium and phosphate absorption, and problems with muscle strength and balance. There will be a consequent 15-30% increase in PTH secretion, leading to increased bone absorption and osteoporosis risk. Serum calcium and phosphate levels will be normal.
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parathyroid hormone (PTH) into the blood. PTH modulates calcium and phosphate homeostasis, as well as bone physiology. PTH has effects antagonistic to those of calcitonin by increasing blood calcium levels by stimulating osteoclasts to break down bone and release calcium.
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The hormone calcitonin, which is produced by the parafollicular (or C) cells of the thyroid, has the opposite effect on blood calcium levels as PTH. Calcitonin decreases blood calcium levels by inhibiting osteoclasts, stimulating osteoblasts, and stimulating calcium excretion by the kidneys.
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What nutrients are involved in bone health? Vitamin D, Calcium, Phosphorous, Magnesium, and Fluoride.
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A) Parathyroid hormone is the single most important regulator of calcium levels in the blood. B) High calcium levels cause bone resorption.
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['Calcium is the main mineral found in bone, and having enough calcium as part of a healthy, balanced diet is important for maintaining healthy bones.', 'Vitamin D helps the body absorb calcium.']
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Although the mechanisms are unclear, early chronic renal failure Kidney: chronic kidney disease (CKD) leads to increased levels of parathyroid hormone (PTH). This causes enhanced excretion of phosphate by the kidneys. However, by late chronic renal failure this mechanism is inadequate leading to hyperphosphatemia.
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Calcium is a crucial building block of bone tissue. Vitamin D helps the body absorb and process calcium. Together, these two nutrients are the cornerstone of healthy bones. The Institute of Medicine recommends 1,000 mg of calcium a day for most adults and 1,200 mg/day for women after menopause and men after 70.
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Osmoregulation is the control of water levels and mineral ions (salt) in the blood. Water levels and mineral ions in the blood are controlled to keep the concentrations the same inside the cells as around them. This protects cells by stopping too much water from entering or leaving them by osmosis.
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[' Regulation of extracellular fluid volume and blood pressure.', ' Regulation of osmolarity.', ' Maintenance of ion balance.', ' Homeostatic regulation of pH.', ' Excretion of wastes.', ' Production of hormones.']
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Test Overview A parathyroid hormone (PTH) blood test measures the level of parathyroid hormone in the blood. This test is used to help identify hyperparathyroidism, to find the cause of abnormal calcium levels, or to check the status of chronic kidney disease. PTH controls calcium and phosphorus levels in the blood.