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Calcium Regulation

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  • Calcium Regulation 
    • Regulation of calcium important for physiological function
    • Calcium levels regulated by several factors
      • Parathyroid hormone (PTH) 
        • Increases calcium levels
          • Stimulates osteoclasts to break down bone to release calcium into blood
          • Increases calcium reabsorption in kidney
          • Stimulates vitamin D to increase GI absorption of calcium
      • Vitamin D
        • Increases calcium levels
          • Increases calcium absorption from digestive system 
      • Calcitonin 
        • Decreases calcium levels
          • Stimulates osteoblasts to store excess calcium as bone