Parathyroid moves calcium and phosphate from the bone into the blood; it then works at the kidneys to increase the elimination of phosphate.
Parathormone
Parathyroid hormone is a hormone secreted by the Parathyroid glands. It increases the concentration of calcium in the blood. It effects bone, kidney and intestine tissue.
When the calcium ion concentration in the blood rises above normal levels, the hormone calcitonin is secreted by the thyroid gland. Calcitonin helps to regulate calcium levels by promoting its deposition into bone tissue, which helps lower the blood calcium concentration back to normal levels.
Parathyroid hormone (PTH) and calcitonin are antagonistic hormones that regulate blood calcium ion levels. PTH increases blood calcium levels by promoting calcium release from bone and absorption from the intestines, while calcitonin decreases blood calcium levels by inhibiting bone resorption.
Parathyroid hormone (PTH) is the hormone that activates vitamin D in response to low blood calcium levels. This activation of vitamin D helps to increase calcium absorption in the intestines and maintain normal calcium levels in the blood.
The hormone produced by the para follicular cells of the thyroid gland is calcitonin (CT). CT can decrease the level of calcium in the blood by inhibiting the action of osteoclasts, the cells that break down bone extracellular matrix. The secretion of CT is controlled by a negative feedback system. When its blood level is high,calcitonin lowers the amount of blood calcium and phosphates by inhibiting bone resorption (breakdown of bone extracellular matrix) by osteoclasts and by accelerating uptake of calcium and phosphates into bone extracellular matrix.
concentration of blood calcium.
The gland responsible for producing a hormone that increases the level of calcium ions in the blood is the parathyroid gland. The hormone produced is called parathyroid hormone (PTH), which helps regulate calcium levels in the body by increasing calcium absorption from the intestines and releasing it from bones.
It increases Calcium level.It reduces phosphate level.
It increases the calcium level.It decreses the phosphste level.
Parathyroid hormone (PTH) is the most important hormone regulating the amount of calcium circulating in the blood. PTH increases blood calcium levels by promoting the release of calcium from bone, enhancing calcium absorption in the intestines, and reducing calcium excretion in the kidneys.
Calcitonin is a hormone that exerts antagonistic action to parathyroid hormone (PTH). Calcitonin helps regulate calcium levels in the blood by promoting calcium deposition in the bones, thus reducing blood calcium levels, whereas PTH increases blood calcium levels by promoting calcium release from bones.