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
There are two hormones.They are Calcitonin and Parathamon.
Cholecalciferol is a steroid hormone that regulates body levels of calcium. It is a form of Vitamin D. Parathyroid hormone increases the concentration of calcium in the blood.
No. Parathyroid hormone increases the amount of calcium in your blood.
Calcitonin - Thyroid Gland
Parathyroid glands secrete PTH (parathyroid hormone) to regulate blood calcium levels.
Parathyroid hormone (PTH) and calcitonin regulate blood calcium levels. PTH increases the calcium concentration in the blood, and calcitonin decreases it.
parathyroid hormone/calcitonin
Calcitonin is the other major hormone involved with calcium regulation. Parathyroid hormone (PTH), produced by the parathyroid gland, increases the level of calcium in the blood. It usually accomplishes this by increasing the resorption rate (taking back) from bone. Calcitonin does the exact opposite and reduces calcium in the blood. Calcitonin is produce in the thyroid gland and removes calcium in the blood primarily by putting calcium back into bone.
The hormone calcitonin acts to reduce blood calcium
Calcitonin, parathyroid hormone and vitamin D.
When calcium levels increase, parathyroid hormone decreases. When calcium levels decrease, parathyroid hormone increases. This is known as a negative feedback system.
The thyroid gland produces calcitonin which lowers blood calcium levels and the parathyroids produce parathyroid hormone which increases blood calcium levels.
Its the hormone calcitonin. Calcitonin lowers calcium and phosphate and increases the excretion of these ions by the kidneys; whereas the parathyroid hormone increases the amount of calcium in the blood.