MICROANATOMY

Detailed explanation-1: -Calcitonin is a hormone that your thyroid gland makes and releases to help regulate calcium levels in your blood by decreasing it. Calcitonin opposes the actions of the parathyroid hormone, which is a hormone that increases your blood calcium levels.

Detailed explanation-2: -Parathyroid glands produce parathyroid hormone, which plays a key role in the regulation of calcium levels in the blood.

Detailed explanation-3: -Calcitonin opposes the effects of parathyroid hormone (PTH), which acts to increase the blood calcium level. Calcitonin lowers blood calcium levels by suppressing osteoclast activity in the bones and increasing the amount of calcium excreted in the urine.

Detailed explanation-4: -Calcitonin is a hormone that helps control the level of calcium in your blood. Calcitonin is made in your thyroid gland by cells called “C cells.” Your thyroid is a small, butterfly-shaped gland in your neck. Normally, you have a small amount of calcitonin in your blood.