Kaltsitoniini
Kaltsitoniini is a polypeptide hormone produced by the parafollicular cells (also known as C-cells) of the thyroid gland in mammals. It plays a role in calcium and phosphate homeostasis. Its primary function is to lower blood calcium levels.
When blood calcium rises, calcitonin is released. It acts on bone by inhibiting osteoclast activity, thereby
Calcitonin also exists in other vertebrates, where it is produced by ultimobranchial glands. The structure and