The parafollicular cells of the thyroid produce calcitonin in response to high calcium levels, but its significance is much smaller than that of PTH.
hormone | growth hormone | Luteinizing hormone | Growth hormone | Thyroid-stimulating hormone | Sex hormone-binding globulin | Parathyroid hormone | Maximum the Hormone | luteinizing hormone | Hormone-sensitive lipase | Growth Hormone (treatment) | Growth hormone deficiency |