Renal homeostasis of calcium

Document Type



The homeostasis of calcium is complex because the gastrointestinal tract, the bone, and the kidney all affect calcium balance. Earlier articles in this series have been concerned almost entirely with the renal handling of ions and water homeostasis. This approach is not possible when dealing with calcium because two other major organ systems are also involved in controlling its concentration--the skeletal system and the gastrointestinal system. The fact that redundant regulatory processes have evolved that enable calcium concentration to be maintained underscores the importance of calcium for optimal physiological functioning. Accordingly, the roles and interactions of all three sites must be considered.


Calcium in the body; Gastrointestinal system; Kidneys; Musculoskeletal system; Nephrology; Renal function


Nephrology | Physiology | Urogenital System


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