PTH does not cause -
High-Yield Explanation
Effect of parathyroid hormone
On calcium
It increases serum calcium level by
Increases resorption of calcium from bone → This is the most prominent action.
Stimulates reabsorption of Ca by kidney
Stimulates renal activation of it. D which increases intestinal absorption of calcium
On Phosphorus
Decrease the level of PO43- in Serum by decreasing PO43- reabsorption in the kidney.