Overviewing the Calcium and Phosphorus homeostasis, this video diligently explains their renal regulation.It also discusses the role of calcitriol and parathyroid hormone and their imbalance. Timeline: 0:25 overview 0:48 Parathyroid hormone 1:14 Intake and Excretion of calcium 3:42 Renal handling of Calcium and Phosphate 5:36 Imbalance of PTH and Calcitriol