PARATHYROID HORMONE IS DEFINED AS----------

Parathyroid hormone= Endocrine regulator of calcium & phosphorus , Parathyroid gland finds its major target, cells in bones & kidney./ .......... mobilization of calcium from the bone.
....... enhancing absorption of calcium from the small intestine -- facilitating calcium absorption from small intestine would clearly serve to elevate blood levels of calcium./ Parathyroid hormone stimulates this process, but indirectly by stimulating production of the active form of Vitamin D in the kidney. Vitamin D induces synthesis of a calcium binding protein in intestinal epithelial cells that facilitate efficient absorption of calcium into blood.