Tag: parathyroid hormone

December 4, 2025 / Mohammed looti

PARATHYROID GLANDS

Introduction and Overview The parathyroid glands represent a crucial component of the human endocrine system, dedicated almost exclusively to maintaining calcium homeostasis. These small but functionally vital glands are typically situated in the neck, in close proximity to the larger thyroid gland, a relationship that historically led to their initial anatomical misidentification or oversight. Their […]

November 14, 2025 / Mohammed looti

PARATHYROID HORMONE

Introduction and Definition of Parathyroid Hormone The Parathyroid Hormone, frequently abbreviated as PTH and sometimes referred to by its alternative name, Parathyrin, is a crucial peptide hormone synthesized and secreted by the chief cells of the parathyroid glands. Its primary physiological role is maintaining calcium homeostasis within the extracellular fluid—a process vital for neuromuscular function, […]