CTN has various meanings in the Common Medical category. Discover the full forms, definitions, and usage contexts of CTN in Common Medical.
Calcitonin is a 32-amino acid linear polypeptide hormone that is produced in humans primarily by the parafollicular cells (also known as C-cells) of the thyroid, and in many other animals in the ultimobranchial body. It acts to reduce blood calcium (Ca2+), opposing the effects of parathyroid hormone (PTH).
Common MedicalLast updated: