MICROANATOMY

Detailed explanation-1: -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-2: -Parathyroid hormone (PTH) stimulates bone resorption by acting directly on osteoblasts/stromal cells and then indirectly to increase differentiation and function of osteoclasts. PTH acting on osteoblasts/stromal cells increases collagenase gene transcription and synthesis.

Detailed explanation-3: -Parathyroid hormone (PTH) stimulates the release of calcium from bone and is thought to initiate its action by a direct effect on the plasma membrane of bone cells.

Detailed explanation-4: -Calcitonin is a hormone that plays a role in regulating the level of calcium in your blood by decreasing it.

Detailed explanation-5: -A substance made by the parathyroid gland that helps the body store and use calcium. A higher-than-normal amount of parathyroid hormone causes high levels of calcium in the blood and may be a sign of disease. Also called parathormone, parathyrin, and PTH.