Parathyroid chief cells are cells in the parathyroid glands which produce parathyroid hormone. The end result of increased secretion by the chief cells of a parathyroid gland is an increase in the serum level of Calcium. Cells in culture, stained for keratin (red) and DNA (green) The cell is the structural and functional unit of all living organisms, and are sometimes called the building blocks of life. ... Human parathyroid glands The parathyroid glands are endocrine glands in the neck, usually located within the thyroid gland, which produce parathyroid hormone. ... Parathyroid hormone (PTH) is secreted by the parathyroid glands as a polypeptide containing 84 amino acids. ... In general, a Chief cell (or a zymogenic cell) is a cell which releases a precursor enzyme. ... Blood plasma is a component of blood. ... General Name, Symbol, Number calcium, Ca, 20 Chemical series alkaline earth metals Group, Period, Block 2, 4, s Appearance silvery white Atomic mass 40. ...