1 Muscle twitching of one arm and Muscle symptoms (4 causes). 2  Muscle twitching of one arm and Muscle twitching in children (4 causes). 3  Muscle twitching of one arm and Muscle weakness (4 causes). 4  Muscle twitching of one arm and Musculoskeletal symptoms (4 causes).
Parathyroid hormone is secreted by the parathyroid glands and is the most important regulator of calcium levels in the blood and within the bones.Alternative names for parathyroid hormone PTH; parathormone; parathyrin.arathyroid hormone is secreted by the parathyroid glands and is the most important regulator of calcium levels in the blood and within the bones. Alternative names for parathyroid hormone PTH; parathormone; parathyrin.
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. PTH is secreted in response to low blood serum calcium (Ca2+) levels.