Parathyroid hormone
also
1,25-OH vitamin D.
The parathyroid glands are responsible for monitoring the calcium level in the blood. When the calcium level is too low, the parathyroids produce parathyroid hormone (PTH) to increase the calcium level in our blood.
Hormone Calcitonin and Hormone Parathamon
Tetany is caused by a disturbance of the blood calcium level. So you can say vitamin D (also considered a hormone) plays a role in it. Also, the parathyroid hormone level has a direct effect on calcium levels.
Tetany is caused by a disturbance of the blood calcium level. So you can say vitamin D (also considered a hormone) plays a role in it. Also, the parathyroid hormone level has a direct effect on calcium levels.
If you are looking for the one hormone that does this, then the answer is parathyroid hormone (PTH), produced in the parathyroid glands.A more technical description is given below:Three hormones act in the body to increase blood calcium levels to normal. These hormones are 1,25-Dihydroxycholecalciferol, parathyroid hormone (PTH), and calcitonin that originate respectively from the liver and kidneys, parathyroid glands, and thyroid glands. The first, 1,25-Dihydroxycholecalciferol (active vitamin D3), serves to increase calcium absorption from the intestine. The second, PTH, dissolves bone into the blood. The third, calcitonin, prevents the bone-derived calcium from being resorbed ("reabsorbed") into the bone from which it came via PTH. To summarize, these three hormones act in concert to raise calcium levels via external and internal routes.References: Ganong's Review of Medical Physiology, 23eKim E. Barrett, et. al. Chapter 23: Hormonal Control of Calcium & Phosphate Metabolism & the Physiology of Bone
When the blood level of calcium drops below normal, the parathyroid glands release parathyroid hormone, which acts to increase blood calcium levels by increasing the activity of osteoclasts, releasing calcium from bone.
Bones have got very large reserve of calcium. So under the influence of calcitonin hormone and parathyroid hormone, the blood calcium level is maintained in very narrow range. Vitamin D is important for absorption of the calcium and also plays some role in maintaining the blood calcium level.
Calcitonin
This hormone lowers down the level of calcium ions in your blood. The range of calcium ion is maintained between 9 to 11 mg / 100 ml.
Calcitonin hormone lowers the blood calcium level. Parathormone or parathyroid hormone rise the calcium level. Vitamin D perform the some what complicated role. Together they maintain the calcium level almost precisely. This is not the precise and expert answer.
Calcitocin works with parathormone to regulate the calcium level of body. Parathormone rises the calcium level and calcitonin reduces it.
pituitary glands