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.
Parathyroid hormone. Parathyroid hormone (PTH), also called parathormone or parathyrin, is a hormone secreted by the parathyroid glands that is important in bone remodeling, which is an ongoing process in which bone tissue is alternately resorbed and rebuilt over time. It essentially increases blood calcium levels.
Hyperparathyroidism Overview. Hyperparathyroidism is the result of an overproduction of a hormone called parathyroid hormone (or PTH) from the parathyroid glands. The parathyroid glands are four small glands that surround the thyroid and are found in the anterior part of the lower neck.They are about the size of a pea.yperparathyroidism Overview. Hyperparathyroidism is the result of an overproduction of a hormone called parathyroid hormone (or PTH) from the parathyroid glands. The parathyroid glands are four small glands that surround the thyroid and are found in the anterior part of the lower neck. They are about the size of a pea.