Put simply, volume refers to the number of contracts traded. For any trade to occur, the market needs to produce a buyer and a seller. A transaction occurs when buyers and sellers meet and is referred to as the market price.
This hormone is secreted from cells of the parathyroid glands and finds its major target cells in bone and kidney. Another hormone, parathyroid hormone-related protein, binds to the same receptor as parathyroid hormone and has major effects on development.
parathyroid glands. embedded in the posterior surface of the thyroid gland, works with the hormone calcitonin that is secreted by the thyroid gland to regulate the calcium levels in the blood and tissues.mbedded in the posterior surface of the thyroid gland, works with the hormone calcitonin that is secreted by the thyroid gland to regulate the calcium levels in the blood and tissues.