Rock is considered an ecosystem because based on the definition of ecosystem. A rock is happens to be in our environment which makes it part of our ecosystem. 1 person found this useful.
The parathyroid glands are four tiny glands, located in the neck, that control the body's calcium levels. Each gland is about the size of a grain of rice (weighs approximately 30 milligrams and is 3-4 millimeters in diameter). The parathyroids produce a hormone called parathyroid hormone (PTH). PTHPTH - parathyroid hormone raises the blood calcium level by: breaking down the bone (where most of the body's calcium is stored) and causing calcium release. increasing the body's ability to absorb calcium from food.
Parathyroid hormone (PTH), also known as parathormone, is a hormone released by the parathyroid glands. The four parathyroid glands are located in your neck, next to the thyroid gland.These glands are responsible for managing calcium, vitamin D, and phosphorus levels in the blood and bones.hus, calcium imbalances in the blood may be a sign of parathyroid gland or PTH issues. Calcium levels in the blood signal the parathyroid glands to release PTH. When calcium levels are low, the parathyroid glands increase PTH production.