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.

Detailed explanation-2: -Parathyroid hormone is directly involved in the bones, kidneys, and small intestine. In the bones, PTH stimulates the release of calcium in an indirect process through osteoclasts which ultimately leads to the resorption of the bones.

Detailed explanation-3: -The parathyroid hormone produced by the thyroid glands helps maintain the right balance of calcium in the bloodstream and in tissues that depend on calcium for proper functioning. This is especially important for nerve and muscle function, as well as bone health.

Detailed explanation-4: -Normally, you have a small amount of calcitonin in your blood. But if you have too much, it may be a sign of: Medullary thyroid cancer (MTC), a rare cancer that happens when C cells in your thyroid grow out of control. C cells grow in the inside part of your thyroid, which is called the medulla.

Detailed explanation-5: -The parathyroid hormone stimulates the following functions: Release of calcium by bones into the bloodstream. Absorption of calcium from food by the intestines.