Parathyroid gland:Agland调节calcium, located behind thethyroid glandintheneck. Theparathyroid glandsecretes ahormonecalledparathormone(orparathyrin),钙和至关重要phosphorusmetabolism. Although the number of parathyroid glands can vary, most people have four, one above the other on each side. They are plastered against the back of thethyroidand therefore at risk for being accidentally removed duringthyroidectomy.
