Parathyroid cell

Article on the topic: "Parathyroid cell"

Introduction: Parathyroid cells, also known as islet cells (C cells), are a rare tumor of the thyroid gland. They are paragangliomas and produce parathyroid hormone, a hormone normally produced by the parathyroid glands. This is a peptide organ, weighing about 6 grams. Secretes parathyroid hormone to regulate phosphorus-calcium metabolism. With hyperparathyroidism (excessive amounts of the hormone), the excretion of calcium from the body increases, which leads to devastating consequences. Unlike thyroid cells (adenomas and malignant neoplasms), parathyroid cells not only produce hormones, but also perform a barrier function, preventing the contents of the posterior lobe of the pituitary gland from penetrating into the lumen of the follicles. The main function of C-cells is the synthesis and secretion of the hormone PTH, regulation of calcium-phosphorus metabolism. Products synthesized by granular and agranular substances are transported to the apical membrane of the cell and secreted into the lumen of endocrine structures. Macroscopy

Parathyroid cells are specialized cells that participate in the regulation of calcium levels in the blood and bone tissue. They are part of the body's endocrine system and are located on the surface of the parathyroid glands.

Parathyroid cells are also called parafollicular cells because they are located in the parafollaries, the layers of cells surrounding the parathyroid glands. The cells are capable of producing parathyroid hormone, a hormone that regulates calcium levels in the body.

A person, depending on age, may have from 2 to 5 parathyroid glands in the body, which