Explain the structure and functions of parathyroid hormone; Discuss the synthesis and functions of vitamin D.
Part A: Structure and Functions of Parathyroid Hormone (PTH) Structure of Parathyroid Hormone Parathyroid hormone (PTH) is a polypeptide hormone composed of 84 amino acids. It is synthesized and secreted by the parathyroid glands, which are small glands located behind the thyroid. PTH is initially produced as a larger inactive precursor called preproPTH, which is […]