What Gland Secretes Calcitonin?

What Gland Secretes Calcitonin? Calcitonin is a 32 amino acid hormone secreted by the C-cells of the thyroid gland. What is the target tissue for calcitonin? Endocrine gland/ source of hormone Hormone Target organ or tissue ThyroidCalcitoninBone Parathyroids PTH (parathyroid hormone) Bone, kidneys, intestine Thymus (regresses in adulthood) Thymopoetin T-lymphocyte cells in blood Pancreas (islet