Nikolas
Created page with "== Introduction == The parathyroid glands are four oval-shaped glands embedded in the posterior surface of the thyroid gland. They’re comprised of ''chief cells'', pale cells that produce PTH, and ''oxyphil cells''. The parathyroid glands produce parathyroid hormone or parathormon (PTH) in response to decreased levels of free (ionised) calcium in the blood. PTH has the following effects: * Increases the renal tubular reabsorption of calcium * Increases the urinary exc..."